A fitting used with a union nut and a tailpiece to form a union.
NSN 5930-01-512-2777
NSN 5935-01-215-2544
NSN 6110-00-215-8585
NSN 6150-01-067-7107
NSN 5990-00-562-8413
NSN 5835-00-941-4959
NSN 5935-01-417-2152
NSN 5930-01-432-1143
NSN 6145-01-180-6512
NSN 5835-00-921-1662
NSN 5910-00-362-0808
NSN 5998-01-615-5740