A valve 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 may be inline or cartridge (manifold) design.
NSN 5975-00-443-5625
NSN 5935-00-320-6281
NSN 5935-00-347-4201
NSN 5835-00-850-1475
NSN 6320-01-652-3806
NSN 5965-01-654-8059
NSN 5935-01-406-2263
NSN 6650-01-465-3309
NSN 6320-01-371-3047
NSN 6610-01-633-8931
NSN 6685-01-461-3223
NSN 6610-01-588-6053