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 5999-00-835-9381
NSN 6110-01-430-7238
NSN 6620-01-081-1042
NSN 6240-01-633-9357
NSN 6240-01-350-3533
NSN 5985-00-070-6136
NSN 5895-01-162-6253
NSN 6110-00-113-1415
NSN 6220-01-621-6888
NSN 5945-01-256-4133
NSN 5996-01-510-3257
NSN 5925-01-254-2578