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 6650-01-288-8279
NSN 5945-01-139-4260
NSN 7035-01-380-6538
NSN 5990-01-205-5937
NSN 6620-01-277-8471
NSN 6145-00-515-6931
NSN 4140-01-064-1684
NSN 6105-00-740-7757
NSN 6105-00-285-2774
NSN 5996-01-069-4892
NSN 5895-01-157-9330
NSN 5999-01-359-8132