A fitting used with a union nut and thread piece to form a union.
NSN 5915-01-334-6827
NSN 6135-00-235-1938
NSN 6220-01-106-3215
NSN 5905-01-424-9348
NSN 5935-01-415-0887
NSN 6685-00-146-2308
NSN 5975-01-364-9602
NSN 6145-01-041-1907
NSN 6645-00-754-4108
NSN 6645-01-624-7209
NSN 5835-01-462-5983
NSN 5990-01-272-4091