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 5855-01-187-2293
NSN 6220-01-645-9129
NSN 7035-01-115-8996
NSN 5960-00-297-7099
NSN 6320-01-117-5516
NSN 5920-01-411-4745
NSN 6610-01-065-1073
NSN 5985-01-383-4930
NSN 5996-00-936-9038
NSN 6130-01-510-6438
NSN 6320-01-380-7372
NSN 5905-01-500-1931