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 6620-01-274-3423
NSN 5999-01-200-9238
NSN 5935-01-563-6318
NSN 6620-01-018-5874
NSN 6220-01-138-0911
NSN 5905-00-146-4611
NSN 6220-00-116-0163
NSN 5990-00-121-2134
NSN 5835-00-238-1516
NSN 5895-00-981-9838
NSN 5895-00-890-3526
NSN 5998-01-203-5020