A fitting used with a union nut and thread piece to form a union.
NSN 5996-00-608-6425
NSN 5910-01-295-1208
NSN 6220-01-607-6069
NSN 6150-01-174-9403
NSN 6620-00-452-5738
NSN 6610-01-243-8506
NSN 5835-01-647-6426
NSN 5945-00-905-3136
NSN 6105-01-349-2749
NSN 5990-01-485-0260
NSN 6240-00-465-2985
NSN 5930-01-054-4710