[Milsurplus] M114 Power Outlet

[Ralph Hogan]

Subject: Radio Power Plug

I have a friend trying to mount a correct era radio in an M114 APC they are
restoring.
The M114 has a power outlet which can be seen at:
http://www.qsl.net/wb4tur/m114plg.jpg
The desire is to power the radio setup off of this outlet.

Rubber diameter is about 1 1/8 inch and thread diameter is about 1 3/8 inch.
Only two of the 3 pins are used.  Keys on socket set the polarity.

Any ideas on what is the mating connector and a source for it?

thanks,
Ralph W4XE / AAT4UU