A fitting used with a union nut and a tailpiece to form a union.
NSN 5915-00-976-1259
NSN 5855-01-505-5144
NSN 6150-01-308-5022
NSN 4140-01-372-4296
NSN 5950-01-003-8636
NSN 6220-01-023-0394
NSN 5855-00-494-9581
NSN 6240-01-103-7515
NSN 5999-01-113-8564
NSN 5835-00-170-5238
NSN 2925-00-391-0331
NSN 5920-01-393-4988