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        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>22539975.00000000</valUSD>
        <pctVal>3.313287366934</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Raytheon Co</name>
        <lei>YR6K3WJN0KKLUPZSNL57</lei>
        <title>Raytheon Co</title>
        <cusip>755111507</cusip>
        <identifiers>
          <isin value="US7551115071"/>
        </identifiers>
        <balance>122400.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16052760.00000000</valUSD>
        <pctVal>2.359692364895</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Comcast Corp</name>
        <lei>51M0QTTNCGUN7KFCFZ59</lei>
        <title>Comcast Corp</title>
        <cusip>20030N101</cusip>
        <identifiers>
          <isin value="US20030N1019"/>
        </identifiers>
        <balance>513011.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>17637318.18000000</valUSD>
        <pctVal>2.592616163611</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Merck &amp; Co Inc</name>
        <lei>4YV9Y5M8S0BRK1RP0397</lei>
        <title>Merck &amp; Co Inc</title>
        <cusip>58933Y105</cusip>
        <identifiers>
          <isin value="US58933Y1055"/>
        </identifiers>
        <balance>302800.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>23297432.00000000</valUSD>
        <pctVal>3.424630556493</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Truist Financial Corp</name>
        <lei>549300DRQQI75D2JP341</lei>
        <title>Truist Financial Corp</title>
        <cusip>89832Q109</cusip>
        <identifiers>
          <isin value="US89832Q1094"/>
        </identifiers>
        <balance>493500.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15219540.00000000</valUSD>
        <pctVal>2.237212313347</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Cigna Corp</name>
        <lei>549300VIWYMSIGT1U456</lei>
        <title>Cigna Corp</title>
        <cusip>125523100</cusip>
        <identifiers>
          <isin value="US1255231003"/>
        </identifiers>
        <balance>139103.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24646269.54000000</valUSD>
        <pctVal>3.622904351443</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Cisco Systems Inc</name>
        <lei>8E6NF1YAL0WT6CWXXV93</lei>
        <title>Cisco Systems Inc</title>
        <cusip>17275R102</cusip>
        <identifiers>
          <isin value="US17275R1023"/>
        </identifiers>
        <balance>561800.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>22084358.00000000</valUSD>
        <pctVal>3.246313466108</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>DuPont de Nemours Inc</name>
        <lei>5493004JF0SDFLM8GD76</lei>
        <title>DuPont de Nemours Inc</title>
        <cusip>26614N102</cusip>
        <identifiers>
          <isin value="US26614N1028"/>
        </identifiers>
        <balance>482984.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16469754.40000000</valUSD>
        <pctVal>2.420988895951</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Marsh &amp; McLennan Cos Inc</name>
        <lei>549300XMP3KDCKJXIU47</lei>
        <title>Marsh &amp; McLennan Cos Inc</title>
        <cusip>571748102</cusip>
        <identifiers>
          <isin value="US5717481023"/>
        </identifiers>
        <balance>235600.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20369976.00000000</valUSD>
        <pctVal>2.994306078225</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Equity Residential</name>
        <lei>5493008RACSH5EP3PI59</lei>
        <title>Equity Residential</title>
        <cusip>29476L107</cusip>
        <identifiers>
          <isin value="US29476L1070"/>
        </identifiers>
        <balance>335495.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20703396.45000000</valUSD>
        <pctVal>3.043317568471</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerConditional desc="REIT" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Lowe's Cos Inc</name>
        <lei>WAFCR4OKGSC504WU3E95</lei>
        <title>Lowe's Cos Inc</title>
        <cusip>548661107</cusip>
        <identifiers>
          <isin value="US5486611073"/>
        </identifiers>
        <balance>228100.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>19628005.00000000</valUSD>
        <pctVal>2.885239269547</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State Street Global Advisors</name>
        <lei>549300BZ5TGIFZUZDZ37</lei>
        <title>State Street Institutional US Government Money Market Fund</title>
        <cusip>857492706</cusip>
        <identifiers>
          <isin value="US8574927062"/>
        </identifiers>
        <balance>6694463.46000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6694463.46000000</valUSD>
        <pctVal>0.984059707715</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Caterpillar Inc</name>
        <lei>WRJR7GS4GTRECRRTVX92</lei>
        <title>Caterpillar Inc</title>
        <cusip>149123101</cusip>
        <identifiers>
          <isin value="US1491231015"/>
        </identifiers>
        <balance>94300.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10942572.00000000</valUSD>
        <pctVal>1.608514897171</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>ConocoPhillips</name>
        <lei>WPTL2Z3FIYTHSP5V2253</lei>
        <title>ConocoPhillips</title>
        <cusip>20825C104</cusip>
        <identifiers>
          <isin value="US20825C1045"/>
        </identifiers>
        <balance>507800.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15640240.00000000</valUSD>
        <pctVal>2.299053552979</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Marathon Oil Corp</name>
        <lei>1FRVQX2CRLGC1XLP5727</lei>
        <title>Marathon Oil Corp</title>
        <cusip>565849106</cusip>
        <identifiers>
          <isin value="US5658491064"/>
        </identifiers>
        <balance>1368145.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4501197.05000000</valUSD>
        <pctVal>0.661658201566</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Johnson &amp; Johnson</name>
        <lei>549300G0CFPGEF6X2043</lei>
        <title>Johnson &amp; Johnson</title>
        <cusip>478160104</cusip>
        <identifiers>
          <isin value="US4781601046"/>
        </identifiers>
        <balance>178500.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>23406705.00000000</valUSD>
        <pctVal>3.440693256228</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2020-04-27</ncom:dateSigned>
      <ncom:nameOfApplicant>NORTHWESTERN MUTUAL SERIES FUND INC</ncom:nameOfApplicant>
      <ncom:signature>Barbara Courtney</ncom:signature>
      <ncom:signerName>Barbara Courtney</ncom:signerName>
      <ncom:title>Controller and Chief Accounting Officer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
