A fitting used with a union nut and thread piece to form a union.
NSN 5945-00-263-2262
NSN 6150-01-613-0310
NSN 7035-01-352-0766
NSN 5935-01-281-1623
NSN 5965-01-469-7216
NSN 6240-01-583-8354
NSN 6620-00-535-1412
NSN 6145-01-459-1697
NSN 5965-01-539-7345
NSN 5925-01-425-0442
NSN 5835-01-227-2318
NSN 6135-01-322-4655