Receptacle assembly, 15 amp, 125 Volts, 60 Hz, bladed type, grounded, watertight, non-magnetic. Single receptacle mounted in a 2-1/8 x 3" brass enclosure per MIL-E-24142/9. A threaded bushing is brazed to the cover to secure the protective cap or the securing ring of the SYM1218.3 mating plug.