A fitting used with a union nut and a tailpiece to form a union.
NSN 5945-00-110-7753
NSN 6620-01-038-7468
NSN 5985-01-351-4892
NSN 6685-00-248-6990
NSN 5855-01-103-8650
NSN 6220-01-205-7688
NSN 6610-00-374-1563
NSN 6110-00-930-8191
NSN 5965-00-156-8562
NSN 5925-01-144-9404
NSN 5835-00-233-6327
NSN 5999-00-422-2996