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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0000009984-10-000040.txt : 20100514
<SEC-HEADER>0000009984-10-000040.hdr.sgml : 20100514
<ACCEPTANCE-DATETIME>20100514104320
ACCESSION NUMBER:		0000009984-10-000040
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100512
FILED AS OF DATE:		20100514
DATE AS OF CHANGE:		20100514

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dempsey Patrick
		CENTRAL INDEX KEY:			0001307654

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04801
		FILM NUMBER:		10831181

	MAIL ADDRESS:	
		STREET 1:		123 MAIN STREET
		CITY:			BRISTOL
		STATE:			CT
		ZIP:			06011

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BARNES GROUP INC
		CENTRAL INDEX KEY:			0000009984
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS FABRICATED METAL PRODUCTS [3490]
		IRS NUMBER:				060247840
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		123 MAIN ST
		CITY:			BRISTOL
		STATE:			CT
		ZIP:			06010
		BUSINESS PHONE:		8605837070

	MAIL ADDRESS:	
		STREET 1:		123 MAIN ST
		CITY:			BRISTOL
		STATE:			CT
		ZIP:			06010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASSOCIATED SPRING CORP
		DATE OF NAME CHANGE:	19760518
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-12</periodOfReport>

    <issuer>
        <issuerCik>0000009984</issuerCik>
        <issuerName>BARNES GROUP INC</issuerName>
        <issuerTradingSymbol>B</issuerTradingSymbol>
    </issuer>

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        <reportingOwnerId>
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            <rptOwnerName>Dempsey Patrick</rptOwnerName>
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        <reportingOwnerAddress>
            <rptOwnerStreet1>BARNES GROUP INC.</rptOwnerStreet1>
            <rptOwnerStreet2>123 MAIN STREET</rptOwnerStreet2>
            <rptOwnerCity>BRISTOL</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06011-0489</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP-BGI; Pres., LMS</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
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            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
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            <transactionAmounts>
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                <transactionPricePerShare>
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            <securityTitle>
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            <transactionAmounts>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                <directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>208</value>
                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
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            <transactionDate>
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                <transactionCode>F</transactionCode>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>21.0889</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <postTransactionAmounts>
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                    <footnoteId id="F1"/>
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                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
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        <nonDerivativeHolding>
            <securityTitle>
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                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
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                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
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            <transactionDate>
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                <transactionPricePerShare>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityShares>
            </underlyingSecurity>
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            <ownershipNature>
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                </natureOfOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
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            </transactionDate>
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                <transactionFormType>4</transactionFormType>
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            <transactionAmounts>
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                </transactionShares>
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            <expirationDate>
                <value>2010-10-30</value>
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                </underlyingSecurityTitle>
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                </underlyingSecurityShares>
            </underlyingSecurity>
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                    <value>0</value>
                </sharesOwnedFollowingTransaction>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stk Option-Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>17.0875</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-05-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>340</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            </transactionAmounts>
            <exerciseDate>
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    <footnotes>
        <footnote id="F1">Includes balances of 3598 Restricted Stock Units granted 2/16/06, 3996 granted 2/14/07, 2033 granted 10/5/07, 10700 granted 2/10/09 and 21800 granted 2/10/09, 17800 granted 2/8/10, that are subject to forfeiture if certain events occur.</footnote>
        <footnote id="F2">The options vested 100% immediately on 4/28/2005.</footnote>
        <footnote id="F3">1 for 1.</footnote>
        <footnote id="F4">The options vested 100% immediately on 8/30/2005.</footnote>
        <footnote id="F5">The options vested 100% immediately on 11/9/2005.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Monique B. Marchetti, purusant to Power of Attorney</signatureName>
        <signatureDate>2010-05-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----