Captive sleeve
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.
NSN 5835-01-599-1876
NSN 5998-01-165-6817
NSN 5895-01-122-7944
NSN 6150-01-542-1692
NSN 5915-01-317-3541
NSN 7035-01-388-6943
NSN 5996-01-207-2724
NSN 6645-01-259-7142
NSN 5975-00-283-6686
NSN 5998-00-107-6012
NSN 5905-01-519-8272
NSN 5975-00-615-6758