NSN 5975-01-661-1984

An item of any material, with or without threads, designed to mate with a conduit outlet or a sealing fitting, electrical conduit. It may be designed as a removable side plate cover with or without hubs. It may have provisions for draining or venting. It may be designed for the insertion and/or mounting of electrical devices, such as switches, receptacle connectors, and indicator light lenses. It may include mechanisms for the external operation of switches but does not include the wiring devices. For items designed to mount directly on a bracket or an electrical current carrying wiring device, see plate, wall, electrical. See also cover, junction box.