A fitting used with a union nut and thread piece to form a union.
NSN 6145-00-393-4083
NSN 5960-00-269-4762
NSN 6105-01-645-4935
NSN 5930-00-699-9438
NSN 5910-00-594-2842
NSN 5975-01-015-9240
NSN 5990-00-018-9723
NSN 6685-00-224-5310
NSN 5930-01-094-3705
NSN 6105-01-421-6925
NSN 5960-01-462-1864
NSN 5910-00-149-2016