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  <xs:element id="nmslf_CRCILonghornHoldingsInc.Member" abstract="true" name="CRCILonghornHoldingsInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_CoupaHoldingsLLCMember" abstract="true" name="CoupaHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_ModelNInc.Member" abstract="true" name="ModelNInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_NCTopcoLLCMember" abstract="true" name="NCTopcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_RunwayBidcoLLCMember" abstract="true" name="RunwayBidcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_WrenchGroupLLCMember" abstract="true" name="WrenchGroupLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_RailProsParentLLCMember" abstract="true" name="RailProsParentLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_FullsteamOperationsLLCMember" abstract="true" name="FullsteamOperationsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_TheUltimusGroupMidcoLLCMember" abstract="true" name="TheUltimusGroupMidcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_LowVoltageHoldingsInc.2Member" abstract="true" name="LowVoltageHoldingsInc.2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_BonterraLLC2Member" abstract="true" name="BonterraLLC2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_MetaBuyerLLCMember" abstract="true" name="MetaBuyerLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_PackagingCoordinatorsMidcoInc.2Member" abstract="true" name="PackagingCoordinatorsMidcoInc.2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_DiamondbackAcquisitionInc.2Member" abstract="true" name="DiamondbackAcquisitionInc.2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_DT1MidcoCorp2Member" abstract="true" name="DT1MidcoCorp2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_MedXHoldingsLLCMember" abstract="true" name="MedXHoldingsLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_SyndigoLLCMember" abstract="true" name="SyndigoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_HigginbothamInsuranceAgencyInc.Member" abstract="true" name="HigginbothamInsuranceAgencyInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_AssociationsFinanceInc.Member" abstract="true" name="AssociationsFinanceInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_OABuyerInc.Member" abstract="true" name="OABuyerInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_KaseyaIncMember" abstract="true" name="KaseyaIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_OranjeHoldcoInc.Member" abstract="true" name="OranjeHoldcoInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_OcalaBidcoInc.Member" abstract="true" name="OcalaBidcoInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_EnverusHoldingsInc.Member" abstract="true" name="EnverusHoldingsInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_LegalSpendHoldingsLLCFkaBottomlineTechnologiesInc.Member" abstract="true" name="LegalSpendHoldingsLLCFkaBottomlineTechnologiesInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_GraphPADSoftwareLLCMember" abstract="true" name="GraphPADSoftwareLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_RXBHoldingsInc.Member" abstract="true" name="RXBHoldingsInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_NMCCrimsonHoldingsInc.Member" abstract="true" name="NMCCrimsonHoldingsInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_ParkPlaceTechnologiesLLCMember" abstract="true" name="ParkPlaceTechnologiesLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_CalabrioInc.Member" abstract="true" name="CalabrioInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_SpecialtycareInc.Member" abstract="true" name="SpecialtycareInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_MoreCowbellIILLCMember" abstract="true" name="MoreCowbellIILLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_AccessionRiskManagementGroupInc.Member" abstract="true" name="AccessionRiskManagementGroupInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_NextHoldcoLLCMember" abstract="true" name="NextHoldcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_CBBuyerInc.Member" abstract="true" name="CBBuyerInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_DebtSecuritiesFixedInterestRateMember" abstract="true" name="DebtSecuritiesFixedInterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_DistributionLogisticsMember" abstract="true" name="DistributionLogisticsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_DebtAndEquitySecuritiesRealizedGainLossMember" abstract="true" name="DebtAndEquitySecuritiesRealizedGainLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" abstract="false" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetSalesAndSettlements" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nmslf_ValuationMarketAndIncomeApproachMember" abstract="true" name="ValuationMarketAndIncomeApproachMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_OtherValuationTechniqueMember" abstract="true" name="OtherValuationTechniqueMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_InvestmentManagementAgreementAssetsInvestedEqualToOrLessThanThresholdMember" abstract="true" name="InvestmentManagementAgreementAssetsInvestedEqualToOrLessThanThresholdMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_ManagementAndServiceFeesBaseRateCalculationAssetsInvestedThreshold" abstract="false" name="ManagementAndServiceFeesBaseRateCalculationAssetsInvestedThreshold" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nmslf_WellsCreditFacilityBroadlySyndicatedLoansMember" abstract="true" name="WellsCreditFacilityBroadlySyndicatedLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_LondonInterbankOfferedRateLIBOR1Member" abstract="true" name="LondonInterbankOfferedRateLIBOR1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_LineOfCreditFacilityBorrowingCapacityFirstPercentage" abstract="false" name="LineOfCreditFacilityBorrowingCapacityFirstPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="nmslf_LineOfCreditFacilityBorrowingCapacityFourthPercentage" abstract="false" name="LineOfCreditFacilityBorrowingCapacityFourthPercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nmslf_RetainedEarningsAccumulatedNetInvestmentIncomeLossMember" abstract="true" name="RetainedEarningsAccumulatedNetInvestmentIncomeLossMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="nmslf_InvestmentCompanyDistributionOrdinaryIncomeNonQualified" abstract="false" name="InvestmentCompanyDistributionOrdinaryIncomeNonQualified" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nmslf_InvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainAccumulatedCapitalLossCarryforward" abstract="false" name="InvestmentCompanyDistributableEarningsLossAccumulatedLongTermCapitalGainAccumulatedCapitalLossCarryforward" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nmslf_InvestmentCompanyDistributionDividendsReceivedDeductionPercentage" abstract="false" name="InvestmentCompanyDistributionDividendsReceivedDeductionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nmslf_InvestmentCompanyDistributionOrdinaryIncomeInterestRelatedPercentage" abstract="false" name="InvestmentCompanyDistributionOrdinaryIncomeInterestRelatedPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="nmslf_InvestmentCompanyTaxReturnOfCapitalDistributionPercentage" abstract="false" name="InvestmentCompanyTaxReturnOfCapitalDistributionPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nmslf_WellsSubscriptionLineMember" abstract="true" name="WellsSubscriptionLineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nmslf_InvestmentCompanyPerShareDataAbstract" abstract="true" name="InvestmentCompanyPerShareDataAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nmslf_InvestmentCompanyDistributionToShareholdersNetInvestmentIncomePerShare" abstract="false" name="InvestmentCompanyDistributionToShareholdersNetInvestmentIncomePerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="nmslf_InvestmentCompanyDistributionToShareholdersRealizedGainsPerShare" abstract="false" name="InvestmentCompanyDistributionToShareholdersRealizedGainsPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
  <xs:element id="nmslf_AverageNetAssets" abstract="false" name="AverageNetAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nmslf_InvestmentCompanyRatioToAverageNetAssetsAbstract" abstract="true" name="InvestmentCompanyRatioToAverageNetAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nmslf_InvestmentCompanyExpenseRatioBeforeFeeWaiverAndReimbursements" abstract="false" name="InvestmentCompanyExpenseRatioBeforeFeeWaiverAndReimbursements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nmslf_InvestmentCompanyExpenseRatioIncludingFeeWaiverAndReimbursements" abstract="false" name="InvestmentCompanyExpenseRatioIncludingFeeWaiverAndReimbursements" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="nmslf_InvestmentCompanyContributedCapital" abstract="false" name="InvestmentCompanyContributedCapital" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nmslf_InvestmentCompanyCapitalShareTransactionPerShare" abstract="false" name="InvestmentCompanyCapitalShareTransactionPerShare" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:perShareItemType"/>
</xs:schema>
