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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 MNx0fH7hC/nFDJL6dSvZqYUlMFIqbzdDfZjflKhfHGLpJcvHQ/hIHKfDXLsZ/UWu
 6LmDXV4gbOBKsfnEfWDYEw==

<SEC-DOCUMENT>0001209191-03-018922.txt : 20030826
<SEC-HEADER>0001209191-03-018922.hdr.sgml : 20030826
<ACCEPTANCE-DATETIME>20030826080704
ACCESSION NUMBER:		0001209191-03-018922
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030725
FILED AS OF DATE:		20030826

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DUFF PATRICK
		CENTRAL INDEX KEY:			0001257330

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-00496
		FILM NUMBER:		03865399

	MAIL ADDRESS:	
		STREET 1:		C/O HERCULES INC
		STREET 2:		1313 NORTH MARKET STREET
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894-0001

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HERCULES INC
		CENTRAL INDEX KEY:			0000046989
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				510023450
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1313 N MARKET ST
		STREET 2:		HERCULES PLAZA
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894
		BUSINESS PHONE:		3025945000

	MAIL ADDRESS:	
		STREET 1:		HERCULES PLAZA
		STREET 2:		ROOM 8151 NW
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894-0001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HERCULES POWDER CO
		DATE OF NAME CHANGE:	19680321
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>doc3a.xml
<DESCRIPTION>FORM 3/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3/A</documentType><periodOfReport>2003-07-25</periodOfReport><dateOfOriginalSubmission>2003-08-26</dateOfOriginalSubmission>
    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000046989</issuerCik>
        <issuerName>HERCULES INC</issuerName>
        <issuerTradingSymbol>HPC</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001257330</rptOwnerCik>
            <rptOwnerName>DUFF PATRICK</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>HERCULES PLAZA</rptOwnerStreet1>
            <rptOwnerStreet2>1313 N. MARKET STREET</rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>DE</rptOwnerState>
            <rptOwnerZipCode>19894-0001</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><footnotes></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Israel J. Floyd
As Attorney In Fact for Patrick Duff</signatureName><signatureDate>2003-08-26</signatureDate></ownerSignature></ownershipDocument>

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