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  <xsd:element id="nbn_AvailableforSaleSecuritiesEffectiveDuration" name="AvailableforSaleSecuritiesEffectiveDuration" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_BankOwnedLifeInsurancePolicyTextBlock" name="BankOwnedLifeInsurancePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_BorrowingLocationMember" name="BorrowingLocationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_CRAQualifiedInvestmentMember" name="CRAQualifiedInvestmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CapitalContribution" name="CapitalContribution" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CapitalLeaseObligationFairValue" name="CapitalLeaseObligationFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_CapitalLeasesPresentValueOfPaymentsAsPercentageOfFairValueOfProperty" name="CapitalLeasesPresentValueOfPaymentsAsPercentageOfFairValueOfProperty" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CapitalToRiskWeightedAssetsWithCapitalConservationBuffer" name="CapitalToRiskWeightedAssetsWithCapitalConservationBuffer" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_CertainLoanAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodNotAccountedForUsingIncomeRecognitionModelAtAcquisitionAtCarryingValue" name="CertainLoanAcquiredInTransferAccountedForAsDebtSecuritiesAcquiredDuringPeriodNotAccountedForUsingIncomeRecognitionModelAtAcquisitionAtCarryingValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" name="CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodAtAcquisitionAtFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" name="CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodCashFlowsExpectedToBeCollectedAtAcquisition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" name="CertainLoanAcquiredInTransferNotAccountedForAsDebtSecuritiesAcquiredDuringPeriodContractuallyRequiredPaymentsReceivableAtAcquisition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CertainLoansAcquiredIcomeRecognitionModelAsDebtSecuritiesAcquiredDuringPeriodInTransferNotAccountedForUsingTableTextBlock" name="CertainLoansAcquiredIcomeRecognitionModelAsDebtSecuritiesAcquiredDuringPeriodInTransferNotAccountedForUsingTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesUnpaidPrincipal" name="CertainLoansAcquiredInTransferNotAccountedForAsDebtSecuritiesUnpaidPrincipal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="nbn_CollateralDependentImpairedLoansMember" name="CollateralDependentImpairedLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CommercialRealEstateLoansHeldAsPercentageOfRiskBasedCapital" name="CommercialRealEstateLoansHeldAsPercentageOfRiskBasedCapital" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="nbn_CommitmentsToOriginateLoansMember" name="CommitmentsToOriginateLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_CommonEquityTier1CapitalToRiskWeightedAssetsWithCapitalConservationBuffer" name="CommonEquityTier1CapitalToRiskWeightedAssetsWithCapitalConservationBuffer" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" name="CommonEquityTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" name="CommonEquityTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_CommonSecuritiesOfTrust" name="CommonSecuritiesOfTrust" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_CourtOrderedConcessionMember" name="CourtOrderedConcessionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_DebtInstrumentPercentageIncreaseInVariableRateBasisForRecognitionOfHigherInterestExpense" name="DebtInstrumentPercentageIncreaseInVariableRateBasisForRecognitionOfHigherInterestExpense" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DeferredCompensationArrangementWithIndividualNumberOfSeniorOfficers" name="DeferredCompensationArrangementWithIndividualNumberOfSeniorOfficers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DeferredTaxAssetsCapitalLease" name="DeferredTaxAssetsCapitalLease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DeferredTaxAssetsInterestOnNonperformingLoans" name="DeferredTaxAssetsInterestOnNonperformingLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DeferredTaxAssetsLoanBasisDifferential" name="DeferredTaxAssetsLoanBasisDifferential" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DeferredTaxLiabilitiesBorrowingsBasisDifferential" name="DeferredTaxLiabilitiesBorrowingsBasisDifferential" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_DefinedContributionPlanEligibleAgeForParticipantsUnderPlan" name="DefinedContributionPlanEligibleAgeForParticipantsUnderPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_DefinedContributionPlanEmployerMatchEmployeeContribution" name="DefinedContributionPlanEmployerMatchEmployeeContribution" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_DefinedContributionPlanPeriodOfServiceForParticipantsUnderPlan" name="DefinedContributionPlanPeriodOfServiceForParticipantsUnderPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_DepositsLocationMember" name="DepositsLocationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_DerivativeNumberOfContractsTerminatedPriorToMaturity" name="DerivativeNumberOfContractsTerminatedPriorToMaturity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_DocumentAndEntityInformation" name="DocumentAndEntityInformation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_FairValueInputsUnderlyingCollateralOnImpairedLoans" name="FairValueInputsUnderlyingCollateralOnImpairedLoans" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_FairValueMeasuredOnNonrecurringBasisGainLossTableTextBlock" name="FairValueMeasuredOnNonrecurringBasisGainLossTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_FederalHomeLoanBankAdvancesMaturitiesOfUnpaidPrincipalBalanceSummaryDueInNextTwelveMonths" name="FederalHomeLoanBankAdvancesMaturitiesOfUnpaidPrincipalBalanceSummaryDueInNextTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_FederalHomeLoanBankAdvancesMaturitiesOfUnpaidPrincipalBalanceSummaryDueInYearTwo" name="FederalHomeLoanBankAdvancesMaturitiesOfUnpaidPrincipalBalanceSummaryDueInYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_FederalHomeLoanBankAdvancesUnpaidPrincipalBalanceSubjectToCallProvisions" name="FederalHomeLoanBankAdvancesUnpaidPrincipalBalanceSubjectToCallProvisions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_FederalHomeLoanBankStockPolicyTextBlock" name="FederalHomeLoanBankStockPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_FinancingReceivableASC31030ForImpairment" name="FinancingReceivableASC31030ForImpairment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_FinancingReceivableAllowanceForAsc31030" name="FinancingReceivableAllowanceForAsc31030" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_GainLossOnAssetsMeasuredAtFairValueOnANonrecurringBasis" name="GainLossOnAssetsMeasuredAtFairValueOnANonrecurringBasis" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_GainLossOnSaleOfLoansHeldforinvestment" name="GainLossOnSaleOfLoansHeldforinvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_GainLossOnSaleOfOtherLoans" name="GainLossOnSaleOfOtherLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_GainLossOnSaleOfSBALoansHeldForSale" name="GainLossOnSaleOfSBALoansHeldForSale" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_GainLossRecognizedOnRealEstateNet" name="GainLossRecognizedOnRealEstateNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_HomeEquityPortfolioSegmentMember" name="HomeEquityPortfolioSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_IncomeTaxReconciliationNonTaxableBOLIIncome" name="IncomeTaxReconciliationNonTaxableBOLIIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateCapsTerminatingInFebruary2020Member" name="InterestRateCapsTerminatingInFebruary2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateCapsTerminatingInSeptember2019Member" name="InterestRateCapsTerminatingInSeptember2019Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateSwapsTerminatingInFebruary2030Member" name="InterestRateSwapsTerminatingInFebruary2030Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateSwapsTerminatingInJuly2023Member" name="InterestRateSwapsTerminatingInJuly2023Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateSwapsTerminatingInJuly2028Member" name="InterestRateSwapsTerminatingInJuly2028Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateSwapsTerminatingInJuly2033Member" name="InterestRateSwapsTerminatingInJuly2033Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_InterestRateSwapsTerminatingInSeptember2029Member" name="InterestRateSwapsTerminatingInSeptember2029Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_LetterOfCredit1Member" name="LetterOfCredit1Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_LoanServicingRightsMember" name="LoanServicingRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_LoansHeldForSaleAndLoanServicingPolicyTextBlock" name="LoansHeldForSaleAndLoanServicingPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_LoansHeldforsaleMember" name="LoansHeldforsaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_LoansLocationMember" name="LoansLocationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_LoansReceivableHeldforsaleNotPartOfDisposalGroupResidentialRealEstate" name="LoansReceivableHeldforsaleNotPartOfDisposalGroupResidentialRealEstate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element id="nbn_LoansReceivableHeldforsaleNotPartOfDisposalGroupSbaLoans" name="LoansReceivableHeldforsaleNotPartOfDisposalGroupSbaLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="nbn_MortgageLoansMember" name="MortgageLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_MortgageServicingRightsMember" name="MortgageServicingRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCapitalTrustIIIDebentureMaturingMarch302034Member" name="NBNCapitalTrustIIIDebentureMaturingMarch302034Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCapitalTrustIIMember" name="NBNCapitalTrustIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCapitalTrustIVDebentureMaturingFebruary232035Member" name="NBNCapitalTrustIVDebentureMaturingFebruary232035Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCapitalTrustsMember" name="NBNCapitalTrustsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCaptialTrustIIIMember" name="NBNCaptialTrustIIIMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NBNCaptialTrustIVMember" name="NBNCaptialTrustIVMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_NonaccretableDifference" name="NonaccretableDifference" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NoteToFinancialStatementDetailsTextual" name="NoteToFinancialStatementDetailsTextual" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NotesToFinancialStatements" name="NotesToFinancialStatements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_NotesToFinancialStatementsAbstract" name="NotesToFinancialStatementsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_OffbalanceSheetLiabilityFundsCalled" name="OffbalanceSheetLiabilityFundsCalled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_OriginatedLoansMember" name="OriginatedLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_OtherComprehensiveIncomeLossAdoptionOfASU201802AfterTax" name="OtherComprehensiveIncomeLossAdoptionOfASU201802AfterTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_OtherComprehensiveIncomeLossAdoptionOfASU201802Tax" name="OtherComprehensiveIncomeLossAdoptionOfASU201802Tax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentExcludingReclassificationOfTaxEffectFromAOCIToRetainedEarningsDueToTaxCutsAndJobsAct" name="OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParentExcludingReclassificationOfTaxEffectFromAOCIToRetainedEarningsDueToTaxCutsAndJobsAct" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_OtherInvestmentsMeasuredAtNetAssetValueMember" name="OtherInvestmentsMeasuredAtNetAssetValueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_PaymentsForProceedsFromLoanAndLeaseOriginationsPrincipalCollectionsAndPurchasedLoanPaydownsNet" name="PaymentsForProceedsFromLoanAndLeaseOriginationsPrincipalCollectionsAndPurchasedLoanPaydownsNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_PaymentsRelatedToTaxWithholdingForSharebasedCompensationRestrictedCommonStock" name="PaymentsRelatedToTaxWithholdingForSharebasedCompensationRestrictedCommonStock" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_PercentageOfAmountActuallyUsedForPurposesOtherThanToAbsorbLossesSubjectToTaxationInYearInWhichUsed" name="PercentageOfAmountActuallyUsedForPurposesOtherThanToAbsorbLossesSubjectToTaxationInYearInWhichUsed" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_PercentageOfLoansFundedWithCoreDeposits" name="PercentageOfLoansFundedWithCoreDeposits" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element id="nbn_PercentageOfReserveForLoanLossesRecaptured" name="PercentageOfReserveForLoanLossesRecaptured" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProceedsFromPaymentsForStockOptionsExercised" name="ProceedsFromPaymentsForStockOptionsExercised" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearFive" name="ProjectedSharebasedCompensationExpenseYearFive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearFour" name="ProjectedSharebasedCompensationExpenseYearFour" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearOne" name="ProjectedSharebasedCompensationExpenseYearOne" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearThree" name="ProjectedSharebasedCompensationExpenseYearThree" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearTotal" name="ProjectedSharebasedCompensationExpenseYearTotal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_ProjectedSharebasedCompensationExpenseYearTwo" name="ProjectedSharebasedCompensationExpenseYearTwo" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration"/>
  <xsd:element id="nbn_PurchasedLoansAsPercentageOfAggregateLoans" name="PurchasedLoansAsPercentageOfAggregateLoans" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant"/>
  <xsd:element abstract="true" id="nbn_PurchasedLoansMember" name="PurchasedLoansMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_RangeFourMember" name="RangeFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_RangeOneMember" name="RangeOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration"/>
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  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-impaired-loans-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-impaired-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loan-portfolio-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loan-portfolio-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-acquired-accounted-for-under-asc-31030-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-acquired-accounted-for-under-asc-31030-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-acquired-not-accounted-for-using-the-income-recognition-model-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-acquired-not-accounted-for-using-the-income-recognition-model-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-by-risk-rating-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-loans-by-risk-rating-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-summary-of-past-due-and-nonaccrual-loans-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-summary-of-past-due-and-nonaccrual-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tables" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tdrs-by-type-of-modification-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tdrs-by-type-of-modification-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tdrs-pre-and-postmodification-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-tdrs-pre-and-postmodification-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-unpaid-principal-balance-and-carrying-amounts-of-asc-31030-loans-details" name="statement-statement-note-3-loans-allowance-for-loan-losses-and-credit-quality-unpaid-principal-balance-and-carrying-amounts-of-asc-31030-loans-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-4-transfers-and-servicing-of-financial-assets-sba-servicing-rights-activities-details" name="statement-statement-note-4-transfers-and-servicing-of-financial-assets-sba-servicing-rights-activities-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-4-transfers-and-servicing-of-financial-assets-tables" name="statement-statement-note-4-transfers-and-servicing-of-financial-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-5-premises-and-equipment-premises-and-equipment-details" name="statement-statement-note-5-premises-and-equipment-premises-and-equipment-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-5-premises-and-equipment-tables" name="statement-statement-note-5-premises-and-equipment-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-6-intangible-assets-annual-amortization-expense-associated-with-the-core-deposit-intangible-details" name="statement-statement-note-6-intangible-assets-annual-amortization-expense-associated-with-the-core-deposit-intangible-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-6-intangible-assets-changes-in-the-carrying-amount-of-the-core-deposit-intangible-details" name="statement-statement-note-6-intangible-assets-changes-in-the-carrying-amount-of-the-core-deposit-intangible-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-6-intangible-assets-components-of-core-deposit-details" name="statement-statement-note-6-intangible-assets-components-of-core-deposit-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-6-intangible-assets-tables" name="statement-statement-note-6-intangible-assets-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-7-deposits-composition-of-deposits-details" name="statement-statement-note-7-deposits-composition-of-deposits-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-7-deposits-scheduled-maturities-of-time-certificates-by-fiscal-year-details" name="statement-statement-note-7-deposits-scheduled-maturities-of-time-certificates-by-fiscal-year-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-7-deposits-tables" name="statement-statement-note-7-deposits-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-8-borrowings-advances-from-fhlbb-details" name="statement-statement-note-8-borrowings-advances-from-fhlbb-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-8-borrowings-outstanding-capital-lease-obligations-details" name="statement-statement-note-8-borrowings-outstanding-capital-lease-obligations-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-8-borrowings-tables" name="statement-statement-note-8-borrowings-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-9-subordinated-debt-junior-subordinated-debentures-details" name="statement-statement-note-9-subordinated-debt-junior-subordinated-debentures-details" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-note-9-subordinated-debt-tables" name="statement-statement-note-9-subordinated-debt-tables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
  <xsd:element abstract="true" id="nbn_statement-statement-significant-accounting-policies-policies" name="statement-statement-significant-accounting-policies-policies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration"/>
</xsd:schema>
