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 5920-01-441-6379
NSN 6150-01-451-0699
NSN 5975-00-999-9388
NSN 5920-01-430-3158
NSN 4140-00-595-7535
NSN 6110-00-285-1895
NSN 5975-01-633-9953
NSN 5855-01-040-3882
NSN 5990-01-116-2181
NSN 6650-01-165-2175
NSN 5950-01-210-3218
NSN 5985-00-051-0701