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 5930-00-234-1833
NSN 5835-01-442-6482
NSN 5960-01-641-5493
NSN 6610-00-680-8325
NSN 5930-00-448-9302
NSN 5835-01-097-5151
NSN 5935-01-148-5577
NSN 5999-01-634-0576
NSN 5990-01-170-6081
NSN 5965-01-043-9357
NSN 5930-01-144-9285
NSN 5935-00-083-6522