A fitting used with a union nut and thread piece to form a union.
NSN 7035-00-946-2642
NSN 6240-00-269-3346
NSN 5905-01-233-8659
NSN 5905-01-581-5096
NSN 5835-01-008-8887
NSN 6240-01-039-8217
NSN 6620-01-552-0049
NSN 5945-01-426-2311
NSN 5930-01-642-9798
NSN 6610-01-065-1073
NSN 5895-00-966-7710
NSN 5999-00-116-2776