A fitting used with a union nut and a tailpiece to form a union.
NSN 6110-01-179-1653
NSN 4140-01-610-8912
NSN 5950-01-324-2638
NSN 6645-01-136-9825
NSN 5945-01-113-9532
NSN 6320-01-544-0860
NSN 5895-01-188-3308
NSN 6645-00-130-6419
NSN 5975-01-211-6594
NSN 5950-01-019-4178
NSN 6685-01-642-7229
NSN 6240-01-554-0363