A fitting used with a union nut and a tailpiece to form a union.
NSN 6105-01-149-1963
NSN 5945-00-788-3269
NSN 5910-01-571-8500
NSN 5975-00-547-8911
NSN 5950-01-607-0323
NSN 5835-00-936-8753
NSN 5998-01-341-5136
NSN 6220-01-388-2624
NSN 6620-01-204-3181
NSN 5930-01-203-6319
NSN 5990-01-609-4793
NSN 5915-01-252-0952