A fitting used with a union nut and a tailpiece to form a union.
NSN 5855-01-585-6619
NSN 6220-01-328-7523
NSN 6220-00-233-7436
NSN 5855-01-496-1234
NSN 5998-01-378-6299
NSN 5945-00-081-9491
NSN 6610-00-009-2736
NSN 6105-01-147-7768
NSN 5855-00-114-4954
NSN 5985-01-350-3823
NSN 6135-01-470-9738
NSN 5990-01-189-9338