EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Jay D. Miller, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of Nortech Systems Incorporated on Form 10-K for the year ended December 31, 2024, fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10-K fairly presents in all material respects the financial condition and results of operations of Nortech Systems Incorporated.

March 31, 2025	By:	/s/ Jay D. Miller
		Jay D. Miller
		Chief Executive Officer and President
		Nortech Systems Incorporated

I, Andrew D. C. LaFrence, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Annual Report of Nortech Systems Incorporated on Form 10-K for the year ended December 31, 2024 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Annual Report on Form 10-K fairly presents in all material respects the financial condition and results of operations of Nortech Systems Incorporated.

March 31, 2025	By:	/s/ Andrew D. C. LaFrence
		Andrew D. C. LaFrence
		Senior Vice President and Chief Financial Officer
		Nortech Systems Incorporated