3b 3rd end thread class two unthreaded tube ends green plastic polytetrafluoroethylene coated in id passivate inside surface treated unjf 3rd end thread series
3a 3rd end bulkhead thread class color yellow; pressed in fit restrictor 0.220 in. dia, 0.250 in. lg, chamfer 45 eg on ne end unjf 3rd end bulkhead thread series