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 6110-00-598-2574
NSN 5855-01-246-8273
NSN 6650-01-068-2258
NSN 6240-01-479-6650
NSN 5910-01-605-7651
NSN 5945-01-047-0187
NSN 5895-00-252-8431
NSN 5915-01-181-4310
NSN 6620-01-398-8986
NSN 5895-00-595-6803
NSN 5985-00-916-3829
NSN 6135-01-100-3593