An item permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It is specifically designed and/or cleaned for oxygen systems. See also valve, check; valve, stop-check.
NSN 5950-01-472-3870
NSN 6220-01-632-8217
NSN 6110-00-211-7435
NSN 6135-01-380-4396
NSN 5855-01-530-4147
NSN 5835-01-519-2916
NSN 5910-01-391-7180
NSN 6135-01-324-2505
NSN 5910-01-103-1773
NSN 5996-00-853-3879
NSN 5920-00-545-8098
NSN 5960-00-357-3043