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 6135-01-079-7852
NSN 5996-01-633-7979
NSN 5835-01-342-7975
NSN 5999-01-435-4607
NSN 5960-00-954-4825
NSN 5920-01-280-5089
NSN 5999-01-458-6937
NSN 6645-01-552-0004
NSN 5999-01-489-6139
NSN 5925-00-612-7159
NSN 6685-01-303-6220
NSN 6320-00-908-6841