A fitting used with a union nut and thread piece to form a union.
NSN 5998-01-095-6284
NSN 6105-01-157-1610
NSN 5915-01-394-5335
NSN 6220-01-368-3119
NSN 5895-01-113-7725
NSN 6220-00-643-4045
NSN 5975-00-224-9154
NSN 5975-01-611-2356
NSN 6610-01-400-3880
NSN 5915-01-541-3957
NSN 2925-01-612-0405
NSN 6220-01-518-6288