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 5985-01-378-4588
NSN 4140-01-438-7938
NSN 6130-01-154-9825
NSN 6220-00-507-9831
NSN 5985-01-420-9536
NSN 6145-01-364-0346
NSN 6130-00-035-3898
NSN 6320-01-039-5891
NSN 5895-01-453-7022
NSN 6220-00-712-1779
NSN 5915-00-528-9286
NSN 6150-00-703-4138