MINNEAPOLIS–(BUSINESS WIRE)–Nortech Systems Incorporated (Nasdaq: NSYS) (the “Company”), a leading provider of engineering and manufacturing solutions for complex electromedical and electromechanical products serving the medical, aerospace & defense and industrial markets, reported net sales of $22.1 million for the quarter ended March 31, 2021, a decline of 19.6% compared to $27.4 for the first quarter of 2020. The decline was primarily due to COVID-related factors including supply chain