<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S FORM 10-Q FOR THE FISCAL QUARTER ENDED MARCH 25, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<CIK> 0000089439
<NAME> MUELLER INDUSTRIES, INC.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-30-2000
<PERIOD-END>                               MAR-25-2000
<CASH>                                         125,575
<SECURITIES>                                         0
<RECEIVABLES>                                  203,857
<ALLOWANCES>                                     4,770
<INVENTORY>                                    121,634
<CURRENT-ASSETS>                               456,343
<PP&E>                                         483,941
<DEPRECIATION>                                 138,711
<TOTAL-ASSETS>                                 915,168
<CURRENT-LIABILITIES>                          158,679
<BONDS>                                        117,215
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           401
<OTHER-SE>                                     575,097
<TOTAL-LIABILITY-AND-EQUITY>                   915,168
<SALES>                                        302,350
<TOTAL-REVENUES>                               302,350
<CGS>                                          226,514
<TOTAL-COSTS>                                  226,514
<OTHER-EXPENSES>                                33,332
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               2,627
<INCOME-PRETAX>                                 42,101
<INCOME-TAX>                                    15,535
<INCOME-CONTINUING>                             26,566
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    26,566
<EPS-BASIC>                                     0.76
<EPS-DILUTED>                                     0.69