Army heater used a male amphenol bulkhead fitting on the trh and a female amphenol power cord fitting
No other part numbers with same form, fit, and function found.
NSN 5965-00-554-4138
NSN 4140-01-022-1431
NSN 5915-00-163-3308
NSN 5895-01-003-8114
NSN 5935-01-123-8686
NSN 4140-00-072-0865
NSN 5935-01-634-0668
NSN 5999-01-411-6203
NSN 4140-00-779-4876
NSN 5996-01-099-9801
NSN 6130-00-452-1486
NSN 5835-01-447-2544