A fitting used with a union nut and a tailpiece to form a union.
NSN 5975-01-029-3974
NSN 6240-00-841-0189
NSN 6130-01-200-1682
NSN 6145-00-161-1609
NSN 5910-01-391-5609
NSN 5925-01-410-6797
NSN 5925-00-837-7944
NSN 5925-01-220-6147
NSN 5895-01-330-9179
NSN 5999-01-045-5884
NSN 6105-00-153-7967
NSN 6610-00-814-8598