-----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,
 WkLXmvGjX5nZ2rCpm2p8C2XInyvYzvD/6aAELz1oPq/BVvIPl9vGPsx4mhOrkpKQ
 8uUijONmzXYMfonTDYAQrA==

<SEC-DOCUMENT>0001019056-05-000613.txt : 20050615
<SEC-HEADER>0001019056-05-000613.hdr.sgml : 20050615
<ACCEPTANCE-DATETIME>20050603095427
ACCESSION NUMBER:		0001019056-05-000613
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050603
FILED AS OF DATE:		20050603
DATE AS OF CHANGE:		20050603

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATCO GROUP INC
		CENTRAL INDEX KEY:			0001057693
		STANDARD INDUSTRIAL CLASSIFICATION:	FABRICATED PLATE WORK (BOILER SHOPS) [3443]
		IRS NUMBER:				222906892
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		BROOKHOLLOW CENTRAL III
		STREET 2:		2950 NORTH LOOP WEST STE 750
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77092
		BUSINESS PHONE:		7136839292

	MAIL ADDRESS:	
		STREET 1:		BROOKHOLLOW CENTERL III
		STREET 2:		2950 NORTH LOOP WEST STE 750
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77092

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WINOKUR HERBERT S JR
		CENTRAL INDEX KEY:			0001046322
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-FACILITIES SUPPORT MANAGEMENT SERVICES [8744]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15603
		FILM NUMBER:		05875909

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7032640330

	MAIL ADDRESS:	
		STREET 1:		30 E ELM ST
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06930
</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>2005-06-03</periodOfReport>

    <issuer>
        <issuerCik>0001057693</issuerCik>
        <issuerName>NATCO GROUP INC</issuerName>
        <issuerTradingSymbol>NTG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001046322</rptOwnerCik>
            <rptOwnerName>WINOKUR HERBERT S JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>30 EAST ELM STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>GREENWICH</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06830</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2005-06-01</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2005-06-01</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.165</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4949400</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Notes 2 and 3</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Restrictions on this grant of restricted stock lapse 100% after one year of service, or on June 1, 2006, or sooner on the death, disability or retirement after age 68 of the recipient, or upon a corporate change. The stock was issued on June 1, 2005, and therefore has no expiration date, but could be forfeited if service ends prior to June 1, 2006, under certain circumstances. Mr. Winokur holds such shares for the benefit of Capricorn Investors II, L.P. (&quot;Capricorn II&quot;).  See Note 2.</footnote>
        <footnote id="F2">Of such 4,949,400 shares, Mr. Winokur holds 26,428 shares directly &amp; 1,835,951 shares through Capricorn Holdings, Inc., of which Mr. Winokur is the sole stockholder.  The remaining 3,087,021 shares are held by Capricorn II.  Such 4,949,400 shares excludes (i) 5,000 restricted shares held directly by Mr. Winokur for the benefit of Capricorn II, for which the restrictions lapse as to 2,500 shares on July 15, 2005 and as to the remaining 2,500 shares on June 3, 2006 and (ii) the 5,000 restricted shares referenced in footnote 1 above.  For purposes of Section 16(b) of the Exchange Act, Mr. Winokur disclaims beneficial ownership of Capricorn II's shares in excess of his pecuniary interest therein.</footnote>
        <footnote id="F3">Mr. Winokur is the managing member of Capricorn Holdings, LLC, the general partner of Capricorn II and, as such, may be deemed to have both voting and investment power over such shares. Mr. Winokur may be deemed to have a pecuniary interest in Capricorn II's shares through his membership interest in Winokur Family Investors LLC, which is a limited partner of Capricorn II and a member of Capricorn Holdings LLC. For purposes of Section 16(b) of the Exchange Act, Mr. Winokur disclaims beneficial ownership of Capricorn II's shares in excess of his pecuniary interest.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ HERBERT S. WINOKUR, JR.</signatureName>
        <signatureDate>2005-06-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----