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 5930-01-468-6206
NSN 5910-00-952-4221
NSN 5930-00-861-5942
NSN 5915-01-633-9845
NSN 5855-01-442-5401
NSN 5999-01-224-4660
NSN 5910-01-010-3694
NSN 5996-01-268-5700
NSN 5910-00-471-2250
NSN 6220-00-958-9830
NSN 6610-00-056-1026
NSN 5835-00-546-4898