With internal hex head
An adapter having standard pipe threads on one end or an unthreaded end designed to accommodate a pipe. The other end has machine threads (straight threads other than pipe or hose series) designed to accommodate a tube or is unthreaded and designed to accommodate a tube. It is designed to join a pipe or pipe fitting to a tube or tube fitting in a straight line.
Classification: Copper alloy tube or pipe fittings
NSN 6610-01-061-8466
NSN 5930-01-204-1691
NSN 6105-00-656-8585
NSN 5920-01-521-2305
NSN 5965-01-597-8749
NSN 6110-00-764-2014
NSN 7035-01-372-0421
NSN 5999-00-566-3180
NSN 6620-00-635-7347
NSN 5895-01-221-1074
NSN 5925-01-523-4838
NSN 6610-00-336-2404