A fitting used with a union nut and a tailpiece to form a union.
NSN 5915-00-754-4898
NSN 6645-01-629-9657
NSN 6685-01-220-8616
NSN 6145-01-094-5146
NSN 5910-01-218-5987
NSN 6135-00-603-4859
NSN 5835-01-412-6901
NSN 6320-01-207-0636
NSN 5999-01-188-0230
NSN 5965-01-260-0780
NSN 6105-01-447-2984
NSN 5855-01-596-9264