A fitting used with a union nut and thread piece to form a union.
NSN 5910-01-545-4954
NSN 6650-00-422-2958
NSN 5985-01-353-0099
NSN 5996-01-116-7729
NSN 5985-00-778-2888
NSN 5905-00-126-6710
NSN 6220-01-245-7783
NSN 5930-00-934-8862
NSN 5920-00-009-8186
NSN 5960-00-443-1483
NSN 5965-01-570-1625
NSN 5930-00-787-9250