Tube end also threaded ext pipe 3/8-18
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: Stainless steel tube or pipe fittings nesoi
NSN 5925-01-195-2985
NSN 5965-01-604-3305
NSN 6320-01-243-2276
NSN 6685-00-339-8822
NSN 5990-00-444-9993
NSN 5965-01-130-1965
NSN 4140-01-309-5961
NSN 4140-01-214-1968
NSN 6130-01-530-0060
NSN 6130-00-466-9888
NSN 5905-01-478-6424
NSN 6220-01-519-9305