A fitting used with a union nut and a tailpiece to form a union.
NSN 5920-01-430-1823
NSN 6135-01-604-8739
NSN 5996-01-534-0965
NSN 6320-00-925-0558
NSN 6650-01-535-6287
NSN 5945-01-541-4827
NSN 5910-01-222-0196
NSN 5996-00-609-5347
NSN 5996-00-103-7124
NSN 5935-01-348-0875
NSN 5855-01-526-4180
NSN 5950-01-381-1361