Cleanliness shall be in accordance with mil-c-52211 for oxygen service
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 5965-01-076-0071
NSN 5990-01-411-5930
NSN 6110-01-587-4309
NSN 6220-01-514-7024
NSN 5835-00-140-4058
NSN 5985-01-455-5503
NSN 5895-00-283-1768
NSN 5960-01-357-1261
NSN 6110-01-314-1990
NSN 6240-01-063-7685
NSN 5965-00-653-4782
NSN 5998-00-500-3477