Switch assembly, pushbutton, double, 120 VAC, 15 Amps, 120 VDC 1/2 Amp, watertight, non-magnetic. Consists of 2 pushbutton switches, each having one set of normally open and normally closed contacts, mounted to the cover of a 2-1/8 x 3" (nominal) brass enclosure. Rubber boots over the pushbuttons and the gasketed cover provide watertight integrity. The normally open contacts of the switches are wired to a type 9TB4 terminal board located in the bottom of the box which has #6 studs and accommodate Type L81 terminal lugs. Plastic marker strips, white with black core, are provided on the cover to be engraved by the installing activity with the circuit names or functions. Per NavShips Drawing 9-S-73755 and Comsaco Drawing 404-2620.1. Navy Symbol 2620.1, Type E-18A. NSN 5930-00-096-2726. See Symbol 789 for a similar item with a single pushbutton and Symbol 2621.1 for a similar item with 3 pushbuttons.