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 6110-01-034-6951
NSN 5905-01-236-6729
NSN 5945-01-116-4441
NSN 6650-01-273-9219
NSN 5998-01-079-4606
NSN 5965-00-938-2814
NSN 6130-01-103-5700
NSN 5920-00-038-6892
NSN 6645-01-629-9657
NSN 5835-01-392-7683
NSN 5910-00-618-0196
NSN 5999-00-707-0073