A fitting used with a union nut and thread piece to form a union.
NSN 6240-00-902-4660
NSN 5996-01-154-4284
NSN 6620-00-766-3974
NSN 5998-01-648-0651
NSN 6150-00-004-4555
NSN 5935-00-533-5780
NSN 6220-01-268-1318
NSN 6685-01-626-3084
NSN 6135-01-642-4964
NSN 5930-01-625-0475
NSN 4140-00-640-6608
NSN 5999-00-656-5809