3/8 inch npt male
No other part numbers with same form, fit, and function found.
NSN 6150-01-305-7285
NSN 5950-00-501-5140
NSN 5945-00-879-8600
NSN 5935-01-381-1998
NSN 5855-01-129-1327
NSN 5985-01-207-0952
NSN 5905-00-235-0772
NSN 4140-00-155-8012
NSN 6685-00-065-5223
NSN 5950-01-634-0677
NSN 5975-01-423-6812
NSN 5999-00-946-4927