A fitting used with a union nut and thread piece to form a union.
NSN 6145-01-139-4859
NSN 6220-01-502-6030
NSN 5950-01-485-6178
NSN 5895-01-429-3920
NSN 6650-00-304-6987
NSN 4140-01-493-8207
NSN 6240-00-166-2271
NSN 5895-00-824-3442
NSN 6240-00-261-8430
NSN 5910-01-531-8685
NSN 2925-00-853-5039
NSN 5945-00-565-2717