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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Q9dU2twgLOEMOIjeGccAFVQpTGcfAdY1KET6BemmHo7OaLlRli+wchhvfcCIKMFR
 NUK0WiMr1BGz6832gYxUew==

<SEC-DOCUMENT>0001036262-05-000040.txt : 20051128
<SEC-HEADER>0001036262-05-000040.hdr.sgml : 20051128
<ACCEPTANCE-DATETIME>20051128123322
ACCESSION NUMBER:		0001036262-05-000040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051123
FILED AS OF DATE:		20051128
DATE AS OF CHANGE:		20051128

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PELRIN JAMES
		CENTRAL INDEX KEY:			0001309992

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22529
		FILM NUMBER:		051227750

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		856-424-6886

	MAIL ADDRESS:	
		STREET 1:		C/O INTEST CORP
		STREET 2:		7 ESTERBROOK LANE
		CITY:			CHERRY HILL
		STATE:			NJ
		ZIP:			08003

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INTEST CORP
		CENTRAL INDEX KEY:			0001036262
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				222370659
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		7 ESTERBROOK LANE
		CITY:			CHERRY HILL
		STATE:			NJ
		ZIP:			08003
		BUSINESS PHONE:		856-424-6886

	MAIL ADDRESS:	
		STREET 1:		7 ESTERBROOK LANE
		CITY:			CHERRY HILL
		STATE:			NJ
		ZIP:			08003
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-11-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001036262</issuerCik>
        <issuerName>INTEST CORP</issuerName>
        <issuerTradingSymbol>INTT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001309992</rptOwnerCik>
            <rptOwnerName>PELRIN JAMES</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O INTEST CORP</rptOwnerStreet1>
            <rptOwnerStreet2>7 ESTERBROOK LANE</rptOwnerStreet2>
            <rptOwnerCity>CHERRY HILL</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08003</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>GM-Temp Mgmt Product Segment</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-11-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1275</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.7021</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18725</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 31, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ James Pelrin</signatureName>
        <signatureDate>2005-11-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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