Receptacle assembly, duplex, watertight, 125 Volts, 15 Amp, non-magnetic. Developed for the DDG51 Class, this watertight duplex receptacle assembly consists of 2 single receptacles mounted to the back side of a 4x7 brass cover. Access to the receptacles is through brass bushings brazed to the cover and sealed with caps to provide watertight integrity when the receptacles are not in use. Enclosure is per MIL-E-24142/4. Mates with Symbol 1218.3 plug which will provide watertight integrity when installed, or conventional bladed plugs when watertight integrity is not required. NSN not assigned. Comsaco drawing and part number 404128.