A fitting used with a union nut and a tailpiece to form a union.
NSN 5950-00-848-2141
NSN 6150-00-907-5490
NSN 6130-01-417-2165
NSN 5950-00-759-5425
NSN 5975-01-031-1303
NSN 6645-01-643-5845
NSN 5999-01-532-4854
NSN 6110-01-556-7927
NSN 5920-01-290-1606
NSN 6610-01-125-9899
NSN 5945-01-161-2324
NSN 4140-01-537-0837