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  <xs:element id="nnbr_AdjustmentsRelatedToTaxWithholdingAndForfeitedForShareBasedCompensation" abstract="false" name="AdjustmentsRelatedToTaxWithholdingAndForfeitedForShareBasedCompensation" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_OtherCountryMember" abstract="true" name="OtherCountryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_TemporaryEquityDividendRatePercentageAnnualIncrease" abstract="false" name="TemporaryEquityDividendRatePercentageAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
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  <xs:element id="nnbr_AOCIAttributableToParentTaxPortionMember" abstract="true" name="AOCIAttributableToParentTaxPortionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="nnbr_DisposalGroupEstimatedTaxIndemnificationPayment" abstract="false" name="DisposalGroupEstimatedTaxIndemnificationPayment" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_TemporaryEquityLiquidationPreferencePercentage" abstract="false" name="TemporaryEquityLiquidationPreferencePercentage" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="nnbr_AssetBackedCreditFacilityMemberMember" abstract="true" name="AssetBackedCreditFacilityMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_InternationalLoansMember" abstract="true" name="InternationalLoansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_MobileSolutionsMember" abstract="true" name="MobileSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_LossOnInterestRateSwapMember" abstract="true" name="LossOnInterestRateSwapMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_DeferredTaxAssetInterestExpenseLimitation" abstract="false" name="DeferredTaxAssetInterestExpenseLimitation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="nnbr_DeferredTaxAssetOperatingLeaseRightOfUseAssets" abstract="false" name="DeferredTaxAssetOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_TemporaryEquityDividendsUnpaidDeemed" abstract="false" name="TemporaryEquityDividendsUnpaidDeemed" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_July222021Member" abstract="true" name="July222021Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_FederalFundsOrPrimeRateMemberMember" abstract="true" name="FederalFundsOrPrimeRateMemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_AutomotiveMember" abstract="true" name="AutomotiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="nnbr_InterestPaidInKindRate" abstract="false" name="InterestPaidInKindRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="nnbr_IncomeTaxesLineItems" abstract="true" name="IncomeTaxesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nnbr_EffectiveIncomeTaxRateReconciliationReturntoProvision" abstract="false" name="EffectiveIncomeTaxRateReconciliationReturntoProvision" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="nnbr_PaymentsofDebtIssuanceCostsandPrepaymentCosts" abstract="false" name="PaymentsofDebtIssuanceCostsandPrepaymentCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_AllowanceForDoubtfulAccountsReceivableTranslationAdjustments" abstract="false" name="AllowanceForDoubtfulAccountsReceivableTranslationAdjustments" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="nnbr_NetIncomePerShareLineItems" abstract="true" name="NetIncomePerShareLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="nnbr_ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfAward" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardTermOfAward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="nnbr_TemporaryEquityDividendRatePercentageIncreaseIfNoDividendPaid" abstract="false" name="TemporaryEquityDividendRatePercentageIncreaseIfNoDividendPaid" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="nnbr_IncentivePlansMember" abstract="true" name="IncentivePlansMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="nnbr_LeaseRightOfUseAsset" abstract="false" name="LeaseRightOfUseAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
