MIL-R-2726/3 Revision C, July 3, 1986
RECEPTACLE, PLUG, ELECTRICAL, 4-PIN GROUNDED, 40-AMPERE, 450-VOLT, ALTERNATING CURRENT, 60-HERTZ (SYMBOL NO. 717.1)
Includes all amendments and changes through Interim Notice 1, June 28, 1999
Additional Comments: RENUMBERED AS MIL-DTL-2726/3C
[C circled] This specification is approved for use within the Naval Sea Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense.
[C circled] The requirements for acquiring the receptacle described herein shall consist of this specification and the latest issue of MIL-R-2726.