<ARTICLE> 5 <LEGEND> THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE COMPANY'S FORM 10-K FOR THE FISCAL YEAR ENDED DECEMBER 25, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS </LEGEND> <CIK> 0000089439 <NAME> MUELLER INDUSTRIES, INC. <MULTIPLIER> 1,000 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-25-1999 <PERIOD-END> DEC-25-1999 <CASH> 149,454 <SECURITIES> 0 <RECEIVABLES> 173,225 <ALLOWANCES> 5,367 <INVENTORY> 119,644 <CURRENT-ASSETS> 440,746 <PP&E> 478,660 <DEPRECIATION> 130,814 <TOTAL-ASSETS> 904,080 <CURRENT-LIABILITIES> 153,061 <BONDS> 118,858 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 401 <OTHER-SE> 569,029 <TOTAL-LIABILITY-AND-EQUITY> 904,080 <SALES> 1,168,744 <TOTAL-REVENUES> 1,168,744 <CGS> 886,531 <TOTAL-COSTS> 886,531 <OTHER-EXPENSES> 134,287 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 11,681 <INCOME-PRETAX> 145,709 <INCOME-TAX> 46,430 <INCOME-CONTINUING> 99,279 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 99,279 <EPS-BASIC> 2.79 <EPS-DILUTED> 2.51