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 6130-01-508-6700
NSN 5895-00-240-5651
NSN 4140-01-071-4694
NSN 5950-01-297-5958
NSN 5950-01-321-4398
NSN 5985-00-379-2345
NSN 5915-00-114-0089
NSN 5985-00-213-7171
NSN 5895-01-359-9188
NSN 6620-01-141-5747
NSN 5935-01-417-2122
NSN 5996-01-391-2733