A fitting used with a union nut and thread piece to form a union.
NSN 5950-00-957-0712
NSN 6105-01-387-1120
NSN 6320-00-164-4087
NSN 6135-01-301-8776
NSN 5999-01-193-3914
NSN 5965-01-451-2481
NSN 5920-01-231-8520
NSN 6130-01-295-9218
NSN 5920-01-632-5501
NSN 5935-00-226-8416
NSN 6620-01-415-2307
NSN 5945-01-139-3293