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  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001560207</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000918541</issuerCik>
      <issuerName>NN INC</issuerName>
      <secFileNumber>001-39268</secFileNumber>
      <issuerAddress>
        <com:street1>6210 ARDREY KELL ROAD</com:street1>
        <com:street2>SUITE 120</com:street2>
        <com:city>CHARLOTTE</com:city>
        <com:stateOrCountry>NC</com:stateOrCountry>
        <com:zipCode>28277</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>980-264-4300</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Legion Partners Asset Management, LLC</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Affiliate of former Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Muriel Siebert &amp; Co., LLC</name>
        <address>
          <com:street1>300 Vesey Street, 5th Floor</com:street1>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10282</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>49079</noOfUnitsSold>
      <aggregateMarketValue>178157.00</aggregateMarketValue>
      <noOfUnitsOutstanding>82580446</noOfUnitsOutstanding>
      <approxSaleDate>10/02/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesInformation>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Wells Fargo Securities, LLC</name>
        <address>
          <com:street1>550 South Tryon Street, 6th Floor</com:street1>
          <com:city>Charlotte</com:city>
          <com:stateOrCountry>NC</com:stateOrCountry>
          <com:zipCode>28202</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>300</noOfUnitsSold>
      <aggregateMarketValue>1089.00</aggregateMarketValue>
      <noOfUnitsOutstanding>82580446</noOfUnitsOutstanding>
      <approxSaleDate>10/02/2026</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>03/18/2026</acquiredDate>
      <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>49079</amountOfSecuritiesAcquired>
      <paymentDate>03/18/2026</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <acquiredDate>01/22/2019</acquiredDate>
      <natureOfAcquisitionTransaction>Open Market Purchase</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Open Market Purchase</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>300</amountOfSecuritiesAcquired>
      <paymentDate>01/22/2019</paymentDate>
      <natureOfPayment>Cash</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners Special Opportunities, L.P. XI</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/06/2026</saleDate>
      <amountOfSecuritiesSold>370001</amountOfSecuritiesSold>
      <grossProceeds>1442152.90</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. I</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/06/2026</saleDate>
      <amountOfSecuritiesSold>24716</amountOfSecuritiesSold>
      <grossProceeds>96335.55</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. II</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/06/2026</saleDate>
      <amountOfSecuritiesSold>37661</amountOfSecuritiesSold>
      <grossProceeds>146791.28</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. I</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/14/2026</saleDate>
      <amountOfSecuritiesSold>986306</amountOfSecuritiesSold>
      <grossProceeds>3850037.43</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. II</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/14/2026</saleDate>
      <amountOfSecuritiesSold>100892</amountOfSecuritiesSold>
      <grossProceeds>393831.10</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners Special Opportunities, L.P. XI</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/14/2026</saleDate>
      <amountOfSecuritiesSold>137808</amountOfSecuritiesSold>
      <grossProceeds>537932.40</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. I</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/17/2026</saleDate>
      <amountOfSecuritiesSold>26816</amountOfSecuritiesSold>
      <grossProceeds>112798.82</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. II</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/17/2026</saleDate>
      <amountOfSecuritiesSold>2743</amountOfSecuritiesSold>
      <grossProceeds>11538.16</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners Special Opportunities, L.P. XI</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>08/17/2026</saleDate>
      <amountOfSecuritiesSold>3747</amountOfSecuritiesSold>
      <grossProceeds>15761.38</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. I</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/23/2026</saleDate>
      <amountOfSecuritiesSold>1263866</amountOfSecuritiesSold>
      <grossProceeds>4868177.71</grossProceeds>
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    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. II</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/23/2026</saleDate>
      <amountOfSecuritiesSold>129284</amountOfSecuritiesSold>
      <grossProceeds>497978.02</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners Special Opportunities, L.P. XI</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/23/2026</saleDate>
      <amountOfSecuritiesSold>176588</amountOfSecuritiesSold>
      <grossProceeds>680184.27</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. I</name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/29/2026</saleDate>
      <amountOfSecuritiesSold>1217716</amountOfSecuritiesSold>
      <grossProceeds>4694534.82</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners, L.P. II </name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/29/2026</saleDate>
      <amountOfSecuritiesSold>124564</amountOfSecuritiesSold>
      <grossProceeds>480218.74</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Legion Partners Special Opportunities, L.P. XI </name>
        <address>
          <com:street1>12121 Wilshire Blvd, Suite 1240</com:street1>
          <com:city>Los Angeles</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>90025</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <saleDate>09/29/2026</saleDate>
      <amountOfSecuritiesSold>170139</amountOfSecuritiesSold>
      <grossProceeds>655919.32</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>The Aggregate Market Value is as of the close of business on 10/01/2026. The number of securities outstanding is as of 08/25/2026.</remarks>
    <noticeSignature>
      <noticeDate>10/02/2026</noticeDate>
      <signature>Raymond T. White, Managing Director of Legion Partners Asset Management, LLC</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
