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 6130-01-024-9391
NSN 5985-01-286-4823
NSN 5855-01-451-6430
NSN 5935-01-499-4241
NSN 5999-01-243-2110
NSN 5998-01-069-2592
NSN 5945-01-031-8189
NSN 5835-01-373-9506
NSN 4140-01-628-9921
NSN 5990-00-959-3312
NSN 6645-01-419-3071
NSN 4140-01-199-2522