21SM284-T2 SM Series Subminiature Basic Switch, Single Pole Double Throw (SPDT), 115 Vac, 5 A, Pin Plunger Actuator, Solder Termination, Military Part Number MS25085-2
21SM284 SM Series Subminiature Basic Switch, Single Pole Double Throw (SPDT), 115 Vac, 5 A, Pin Plunger Actuator, Solder Termination, Military Part Number MS25085-1