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 6220-00-397-6910
NSN 5930-00-904-0524
NSN 5996-00-823-8487
NSN 7035-00-252-7467
NSN 6645-01-268-7265
NSN 5960-00-726-0580
NSN 5835-01-438-7899
NSN 5895-01-255-4548
NSN 2925-01-329-3665
NSN 6320-00-831-2227
NSN 5930-01-454-6611
NSN 5998-01-223-8339