Hei (HEIIQ) 10-K 2005 FY Annual report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. §1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

      In connection with the Annual Report on Form 10-K of HEI, Inc. (the “Company”) for the fiscal year ended August 31, 2005, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mack V. Traynor, III, Chief Executive Officer and President of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of 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.

/s/ Mack V. Traynor, III

Mack V. Traynor, III

Chief Executive Officer and President

Date: November 23, 2005

*  A signed original of this written statement required by Section 906 has been provided to HEI, Inc. and will be retained by HEI, Inc. and furnished to the Securities and Exchange Commission or its staff upon request.