A fitting used with a union nut and a tailpiece to form a union.
NSN 5935-01-377-1140
NSN 6320-01-192-0332
NSN 5960-01-221-8642
NSN 5920-01-534-3806
NSN 6685-01-380-6838
NSN 6685-01-646-3343
NSN 5990-01-652-7373
NSN 6685-01-514-8193
NSN 6145-01-551-2554
NSN 6645-01-062-0905
NSN 6320-00-731-6134
NSN 5985-01-330-6793