-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RlYYuqwJWbryeFnyJESdm+Gc+nbPMbtp49Pff9Blg1as5oExcOndFoyA9MHRGiNo
 Vc4Sisrdsycz6J8cf8+CyQ==

<SEC-DOCUMENT>0001273921-03-000001.txt : 20031222
<SEC-HEADER>0001273921-03-000001.hdr.sgml : 20031222
<ACCEPTANCE-DATETIME>20031222123023
ACCESSION NUMBER:		0001273921-03-000001
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031216
FILED AS OF DATE:		20031222

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOSS RALPH L
		CENTRAL INDEX KEY:			0001273921

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03390
		FILM NUMBER:		031067012

	MAIL ADDRESS:	
		STREET 1:		818 CONNECTICUT AVE NW
		STREET 2:		STE 801
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			2006

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEABOARD CORP /DE/
		CENTRAL INDEX KEY:			0000088121
		STANDARD INDUSTRIAL CLASSIFICATION:	MEAT PACKING PLANTS [2011]
		IRS NUMBER:				042260388
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9000 W. 67TH STREET
		CITY:			SHAWNEE MISSION
		STATE:			KS
		ZIP:			66202
		BUSINESS PHONE:		9136768800

	MAIL ADDRESS:	
		STREET 1:		9000 W. 67TH STREET
		CITY:			SHAWNEE MISSION
		STATE:			KS
		ZIP:			66202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SEABOARD ALLIED MILLING CORP
		DATE OF NAME CHANGE:	19820328

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HATHAWAY BAKERIES INC
		DATE OF NAME CHANGE:	19710315
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2003-12-16</periodOfReport>


    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000088121</issuerCik>
        <issuerName>SEABOARD CORP /DE/</issuerName>
        <issuerTradingSymbol>SEB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001273921</rptOwnerCik>
            <rptOwnerName>MOSS RALPH L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>818 CONNECTICUT AVE NW</rptOwnerStreet1>
            <rptOwnerStreet2>STE 801</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>2006</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>



    <ownerSignature>
        <signatureName>/s/ Ralph L. Moss</signatureName>
        <signatureDate>2003-12-22</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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