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 5910-01-104-9859
NSN 6240-01-367-3656
NSN 6220-01-576-8405
NSN 5960-01-328-8248
NSN 5999-01-551-7954
NSN 5920-01-458-6445
NSN 5915-00-221-9610
NSN 4140-01-182-5861
NSN 6620-01-649-0748
NSN 7035-01-153-1767
NSN 5975-00-762-8051
NSN 7035-01-643-8304