EXHIBIT 32.1
                                                                    ------------
                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350

In connection with the Annual Report of Herley Industries,  Inc. (the "Company")
on Form 10-K for the  fiscal  year  ended  August  3,  2003,  as filed  with the
Securities and Exchange  Commission on the date hereof (the "Report"),  I, Myron
Levy,  Vice  Chairman of the Board and Chief  Executive  Officer of the Company,
hereby  certify,  pursuant to 18 U.S.C.  Section  1350,  as adopted  pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

     (1) The Report fully  complies  with the  requirements  of Section 13(a) or
         15(d) of the Securities Exchange Act of 1934; and

     (2) The  information  contained  in  the  Report  fairly  presents,  in all
         material respects, the financial condition and results of operations of
         the Company.


                                    Date:    October 31, 2003

                                    By:          /s/ Myron Levy
                                             ------------------------------
                                    Name:     Myron Levy
                                    Title:   Vice Chairman of the Board and
                                             Chief Executive Officer