SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


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                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934


         Date of Report (Date of Earliest Event Reported): MAY 19, 2004

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                              BLACK BOX CORPORATION
               (Exact Name of Registrant as Specified in Charter)



DELAWARE                        0-18706                     95-3086563
(State or Other Jurisdiction    (Commission File Number)    (IRS Employer
of Incorporation)                                           Identification No.)


1000 PARK DRIVE
LAWRENCE, PENNSYLVANIA                                        15055
(Address of Principal Executive Offices)                      (Zip Code)


       Registrant's telephone number, including area code: (724) 746-5500



ITEM 12.  RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
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     On May 19, 2004,  Black Box Corporation  issued a press release  announcing
its  financial  results for the quarter and year ended March 31, 2004. A copy of
the press release is furnished as Exhibit 99.1 to this report.



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                                   SIGNATURES
Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.



                              BLACK BOX CORPORATION



Date:  May 19, 2004           By:  /s/ Michael McAndrew
                              -------------------------------------------
                                   Michael McAndrew
                                   Chief Financial Officer, Treasurer and
                                   Principal Accounting Officer

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                                  EXHIBIT INDEX

Exhibit Number           Description
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99.1                     Press Release dated May 19, 2004



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