A fitting used with a union nut and a tailpiece to form a union.
NSN 5996-00-193-0585
NSN 6220-01-171-0957
NSN 7035-01-633-9537
NSN 6645-01-091-9363
NSN 5950-00-167-6263
NSN 5895-00-539-8322
NSN 5960-01-558-7787
NSN 6650-00-307-3437
NSN 5945-01-083-6299
NSN 5920-01-247-1389
NSN 6620-01-028-0504
NSN 5905-00-548-0122