Marine Air Supply is a stocking, and value-added distributor of electromechanical components since 1965. Our focus is on mil-spec and commercial grade switches, relays, circuit breakers, lighted panel devices, and cockpit control devices. We service a broad spectrum of customers including the Military Defense, Aerospace & Aviation, Maritime, Railway & Transportation, Industrial & Commercial Electronics. Headquartered in Frederick, Maryland, just outside of Washington, D.C., Marine Air Supply stocks an extensive inventory of high quality components.  We are proud to announce that 2015 begins our 50th year stocking and supplying all your electro-mechanical requirements.


Relays & Contactors

Circuit Breakers

Remote Control Breakers

Lighted Products

Control Grips

LEDs & Lamps

Seals & Guards

Value Added Services