<SEC-DOCUMENT>0000089439-19-000046.txt : 20190503
<SEC-HEADER>0000089439-19-000046.hdr.sgml : 20190503
<ACCEPTANCE-DATETIME>20190503103621
ACCESSION NUMBER:		0000089439-19-000046
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190503
FILED AS OF DATE:		20190503
DATE AS OF CHANGE:		20190503

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mitchell Christopher Andrew
		CENTRAL INDEX KEY:			0001738165

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-06770
		FILM NUMBER:		19794590

	MAIL ADDRESS:	
		STREET 1:		198 PIONEER TOWER ROAD
		CITY:			KITCHENER
		STATE:			A6
		ZIP:			N2P 2H8

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MUELLER INDUSTRIES INC
		CENTRAL INDEX KEY:			0000089439
		STANDARD INDUSTRIAL CLASSIFICATION:	ROLLING DRAWING & EXTRUDING OF NONFERROUS METALS [3350]
		IRS NUMBER:				250790410
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1228

	BUSINESS ADDRESS:	
		STREET 1:		SUITE 100
		STREET 2:		150 SCHILLING BOULEVARD
		CITY:			COLLIERVILLE
		STATE:			TN
		ZIP:			38017
		BUSINESS PHONE:		(901)753-3200

	MAIL ADDRESS:	
		STREET 1:		SUITE 100
		STREET 2:		150 SCHILLING BOULEVARD
		CITY:			COLLIERVILLE
		STATE:			TN
		ZIP:			38017

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SHARON STEEL CORP
		DATE OF NAME CHANGE:	19910103
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>wf-form3_155689416655585.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2019-05-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000089439</issuerCik>
        <issuerName>MUELLER INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>MLI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001738165</rptOwnerCik>
            <rptOwnerName>Mitchell Christopher Andrew</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>198 PIONEER TOWER RD.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>KITCHENER</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>N2P 2H8</rptOwnerZipCode>
            <rptOwnerStateDescription>ONTARIO, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President, Canadian Operations</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">3,000 of these shares will vest on 7/30/2022. 4,000 of these shares will vest on February 28, 2023, provided that either a diluted earnings per share (EPS)-related or total shareholder return (TSR)-related performance metric has been achieved. 6,000 of these shares will vest on 7/30/2023.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Anthony Steinriede, Attorney-in-Fact</signatureName>
        <signatureDate>2019-05-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24.htm
<DESCRIPTION>MITCHELL POWER OF ATTORNEY
<TEXT>
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<PAGE>

                                                            EXHIBIT 24



                          LIMITED POWER OF ATTORNEY


Know all persons by these presents, that the undersigned hereby
constitutes and appoints each of Jeffrey, A. Martin, Christopher J. Miritello,
Anthony J. Steinriede, and Kimberly D. Williams (each as a "Designee"),
each acting alone with full power, the undersigned's true and lawful
attorney-in-fact to:

(1)    execute for and on behalf of the undersigned, in the undersigned's
capacity as an officer or director of Mueller Industries, Inc. or its
subsidiaries (the "Company"), Forms 3, 4 and 5 in accordance with Section
16(a) of the Securities Exchange Act of 1934 and the rules thereunder;
and

(2)    do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and execute
any such Form 3, 4 or 5 and timely file such form with the United States
Securities and Exchange Commission and any stock exchange or similar
authority.

This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect
to the undersigned's holdings of and transactions in securities issued by
the Company, unless earlier revoked by the undersigned in a signed
writing delivered to either of the foregoing attorneys-in-fact; provided,
however, that a Designee's status as an attorney-in-fact for the undersigned
shall be automatically revoked if their employment with the Company is terminated
for any reason.

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 18th day of April, 2018.


                             /s/ Christopher A. Mitchell
                             Printed Name: Christopher A. Mitchell

</pre>
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