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 5895-01-234-9298
NSN 6130-01-385-0734
NSN 5855-01-300-2301
NSN 5915-01-429-9287
NSN 6150-01-485-5010
NSN 5996-00-518-0460
NSN 5935-00-176-2581
NSN 5960-01-502-6270
NSN 5895-00-311-1674
NSN 5960-01-505-2426
NSN 5895-01-369-3258
NSN 6220-01-642-8678