A fitting used with a union nut and a tailpiece to form a union.
NSN 6220-01-040-9002
NSN 6645-01-018-7664
NSN 5925-01-398-8244
NSN 5920-00-125-1316
NSN 5930-01-131-5922
NSN 5935-01-601-4861
NSN 5905-00-427-6457
NSN 5920-00-362-1376
NSN 5935-00-581-8134
NSN 5895-01-381-6043
NSN 5996-01-069-6806
NSN 6610-00-038-3423