A fitting used with a union nut and a tailpiece to form a union.
NSN 6220-00-757-5115
NSN 4140-01-399-8527
NSN 5920-00-982-8042
NSN 5920-01-551-1295
NSN 5935-01-526-4287
NSN 5905-01-060-7667
NSN 5925-01-434-1479
NSN 6135-00-276-7625
NSN 5998-01-423-6253
NSN 5930-00-816-7999
NSN 5975-00-348-7427
NSN 6150-00-688-7752