EXHIBIT 32.2

                             CERTIFICATE PURSUANT TO
                             18 U.S.C. SECTION 1350
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

The undersigned, Robert V. Condon, Chief Financial Officer of Merrimac
Industries, Inc. (the "Company"), hereby certifies, pursuant to 18 U.S.C. 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

     1.   The Company's Quarterly Report on Form 10-Q for the period ending July
          1, 2006, as filed with the Securities and Exchange Commission on the
          date hereof (the "Quarterly 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 Quarterly Report fairly presents, in
          all material respects, the financial condition and results of
          operations of the Company.


/s/ Robert V. Condon
----------------------------
Robert V. Condon
Chief Financial Officer
August 15, 2006