Adapter has 0.500 in. Wrenching flats
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 5960-01-349-5525
NSN 7035-01-206-2623
NSN 6135-01-377-5729
NSN 6645-01-344-8702
NSN 6650-00-116-7439
NSN 6650-01-289-3901
NSN 5945-01-220-2615
NSN 5999-01-617-2172
NSN 6620-01-227-4380
NSN 6320-00-089-9426
NSN 5925-01-568-2807
NSN 5960-01-397-6173