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      <filer>
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          <ccc>XXXXXXXX</ccc>
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      <liveTestFlag>LIVE</liveTestFlag>



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    <issuerInfo>
      <issuerCik>0000030305</issuerCik>
      <issuerName>DUCOMMUN INC /DE/</issuerName>
      <secFileNumber>001-08174</secFileNumber>
      <issuerAddress>
        <com:street1>200 SANDPOINTE AVENUE</com:street1>
        <com:street2>SUITE 700</com:street2>
        <com:city>SANTA ANA</com:city>
        <com:stateOrCountry>CA</com:stateOrCountry>
        <com:zipCode>92707</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>657-335-3665</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Oswald Stephen G</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Charles Schwab Corp.</name>
        <address>
          <com:street1>3000 Schwab Way</com:street1>
          <com:city>Westlake</com:city>
          <com:stateOrCountry>CO</com:stateOrCountry>
          <com:zipCode>76262</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>13108</noOfUnitsSold>
      <aggregateMarketValue>643537.00</aggregateMarketValue>
      <noOfUnitsOutstanding>14641154</noOfUnitsOutstanding>
      <approxSaleDate>02/26/2024</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>11/13/2017</acquiredDate>
      <natureOfAcquisitionTransaction>Equity Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Ducommun Incorporated</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>7900</amountOfSecuritiesAcquired>
      <paymentDate>11/13/2017</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>03/09/2022</acquiredDate>
      <natureOfAcquisitionTransaction>Equity Compensation</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Ducommun Incorporated</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>5208</amountOfSecuritiesAcquired>
      <paymentDate>03/09/2022</paymentDate>
      <natureOfPayment>Equity Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>7,900 shares from Stephen &amp; Regina Oswald Foundation 5,208 shares from Stephen G. Oswald Revocable Trust U/A DTD 01/27/2016</remarks>
    <noticeSignature>
      <noticeDate>02/26/2024</noticeDate>
      <signature>Stephen G. Oswald</signature>
    </noticeSignature>
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144
0001695904
XXXXXXXX
LIVE
0000030305
DUCOMMUN INC /DE/
001-08174
200 SANDPOINTE AVENUE
SUITE 700
SANTA ANA
CA
92707
657-335-3665
Oswald Stephen G
Officer
Common
Charles Schwab Corp.
3000 Schwab Way
Westlake
CO
76262
13108
643537.00
14641154
02/26/2024
NYSE
Common
11/13/2017
Equity Compensation
Ducommun Incorporated
N
7900
11/13/2017
Equity Compensation
Common
03/09/2022
Equity Compensation
Ducommun Incorporated
N
5208
03/09/2022
Equity Compensation
Y
7,900 shares from Stephen & Regina Oswald Foundation 5,208 shares from Stephen G. Oswald Revocable Trust U/A DTD 01/27/2016
02/26/2024
Stephen G. Oswald