The AEC 3114 is a commercial version of the MS3114 connector.
The AEC 3114 style jam nut receptacle provides increased environmental protection due to its single mounting hole. It features a low-profile nut where it is “jammed” up against a standard nut to lock the two in place. An integrated silicone O-ring offers additional sealing while the integrated splash-proof backshell provides environmental protection and strain relief.