A fitting used with a union nut and thread piece to form a union.
NSN 5996-01-422-8103
NSN 5855-00-411-8688
NSN 5975-01-462-1828
NSN 5975-01-364-8662
NSN 6105-01-444-3418
NSN 5910-01-484-2107
NSN 5835-01-190-5192
NSN 6320-00-583-3105
NSN 5915-01-455-1358
NSN 4140-01-462-7737
NSN 5950-01-028-1329
NSN 5985-01-484-4089