A fitting used with a union nut and a tailpiece to form a union.
NSN 5855-00-228-8446
NSN 2925-01-646-9112
NSN 5915-01-224-7044
NSN 5990-01-280-0321
NSN 5996-00-416-8877
NSN 5965-00-554-4138
NSN 6105-01-272-8061
NSN 6130-01-511-0477
NSN 5999-00-903-0488
NSN 5965-01-292-0035
NSN 5905-01-588-3785
NSN 7035-00-631-3782