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 6110-00-416-6840
NSN 5905-01-040-7951
NSN 5835-00-794-7500
NSN 5975-00-724-3147
NSN 6145-01-124-2124
NSN 6130-00-912-8073
NSN 4140-00-753-6888
NSN 6150-01-013-8459
NSN 6650-01-246-4262
NSN 6150-01-272-6927
NSN 5950-01-376-7623
NSN 5930-01-515-2492