A fitting used with a union nut and a tailpiece to form a union.
NSN 5996-01-080-2375
NSN 6220-01-598-8868
NSN 6145-01-538-1265
NSN 6150-00-931-9266
NSN 6150-00-983-3176
NSN 6135-01-472-4533
NSN 6145-01-122-6158
NSN 6620-01-542-8709
NSN 5835-01-478-9428
NSN 5998-01-183-7072
NSN 5920-00-519-9722
NSN 6130-01-360-0418