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 5855-00-455-6070
NSN 5905-01-503-8702
NSN 6150-01-537-0229
NSN 5960-01-444-2205
NSN 5855-01-020-7982
NSN 5945-01-397-8533
NSN 6220-00-119-1507
NSN 5835-01-124-6288
NSN 6105-01-424-0275
NSN 5915-00-176-2548
NSN 5910-01-603-2070
NSN 5999-01-434-1063