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 6650-01-294-1067
NSN 5910-01-384-2142
NSN 5915-01-633-9845
NSN 5895-01-542-9039
NSN 6645-00-285-8781
NSN 5998-01-364-9400
NSN 5945-01-342-6813
NSN 5999-00-170-8808
NSN 5975-01-431-2113
NSN 6110-01-534-3881
NSN 6240-01-449-2883
NSN 5975-01-479-0268