A fitting used with a union nut and a tailpiece to form a union.
NSN 5920-01-407-7115
NSN 6620-01-247-1816
NSN 5930-01-396-2681
NSN 5999-01-324-7012
NSN 5910-01-487-6757
NSN 5930-01-634-0659
NSN 6320-01-631-7828
NSN 5965-01-415-1210
NSN 7035-01-192-2659
NSN 6130-01-493-3102
NSN 6150-00-171-3325
NSN 6645-00-851-6654