A fitting used with a union nut and a tailpiece to form a union.
NSN 5915-01-441-4122
NSN 4140-01-428-4485
NSN 5895-00-680-9784
NSN 6685-00-641-3176
NSN 5930-01-120-5427
NSN 5985-01-021-1595
NSN 5895-01-193-5312
NSN 5915-00-819-3653
NSN 5895-01-632-0550
NSN 5855-01-027-1571
NSN 5999-01-431-0408
NSN 2925-01-254-3068