-----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,
 GlOSuMPBGhzz2m/YbceeEjwQIdKetw6VZuyvbyPzer1438Ts0g7OLaOkV3X+fXrS
 O0eQIKPkXcKoS5pcX214lQ==

<SEC-DOCUMENT>0001300378-05-000006.txt : 20050331
<SEC-HEADER>0001300378-05-000006.hdr.sgml : 20050331
<ACCEPTANCE-DATETIME>20050331174958
ACCESSION NUMBER:		0001300378-05-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050329
FILED AS OF DATE:		20050331
DATE AS OF CHANGE:		20050331

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SPARTON CORP
		CENTRAL INDEX KEY:			0000092679
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				381054690
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		2400 E GANSON ST
		CITY:			JACKSON
		STATE:			MI
		ZIP:			49202
		BUSINESS PHONE:		5177878600

	MAIL ADDRESS:	
		STREET 1:		2400 E GANSONS STREET
		CITY:			JACKSON
		STATE:			MI
		ZIP:			49202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SPARKS WITHINGTON CO
		DATE OF NAME CHANGE:	19710510

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smith John J Trust
		CENTRAL INDEX KEY:			0001321753
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01000
		FILM NUMBER:		05722229

	BUSINESS ADDRESS:	
		STREET 1:		6043 NORTH GATEHOUSE S E
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49546
		BUSINESS PHONE:		616 940-2960

	MAIL ADDRESS:	
		STREET 1:		6043 NORTH GATEHOUSE S E
		CITY:			GRAND RAPIDS
		STATE:			MI
		ZIP:			49546
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-03-29</periodOfReport>

    <issuer>
        <issuerCik>0000092679</issuerCik>
        <issuerName>SPARTON CORP</issuerName>
        <issuerTradingSymbol>SPA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001321753</rptOwnerCik>
            <rptOwnerName>Smith John J Trust</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6043 N. GATEHOUSE S.E.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GRAND RPAIDS</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49546</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-03-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>87883</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>983033</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The number of shares has been adjusted to reflect the 5% stock dividends paid by the Issuer on February 18, 2003, December 19, 2003 and December 15, 2004.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Bradley O. Smith, Co-Trustee</signatureName>
        <signatureDate>2005-03-31</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----