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 5996-01-006-6346
NSN 6150-00-905-1744
NSN 5990-01-205-5937
NSN 6105-01-173-6972
NSN 6610-01-397-4607
NSN 5975-01-432-4125
NSN 5910-00-276-6883
NSN 5895-00-215-0179
NSN 5910-01-659-8158
NSN 6135-01-615-0812
NSN 5960-01-481-3722
NSN 5998-00-539-3763