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 6135-01-220-7193
NSN 5930-00-651-5631
NSN 6240-01-467-3341
NSN 5975-01-469-2510
NSN 5999-01-020-3409
NSN 5945-01-435-4909
NSN 6110-00-564-4262
NSN 5996-00-150-8842
NSN 5920-01-505-2597
NSN 5996-00-927-7729
NSN 6620-01-097-1038
NSN 5996-00-007-8510