A fitting used with a union nut and a tailpiece to form a union.
NSN 6105-00-789-5612
NSN 6650-01-392-6076
NSN 5915-00-807-8547
NSN 5855-01-203-4719
NSN 5996-01-295-6499
NSN 6145-00-780-5509
NSN 5950-01-451-0802
NSN 6610-01-265-1824
NSN 6240-01-342-3274
NSN 6320-00-925-0558
NSN 5985-01-609-5342
NSN 5965-00-949-5765