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 6130-01-524-9443
NSN 6220-00-272-7497
NSN 6145-01-103-4863
NSN 5915-01-392-3168
NSN 6240-01-392-2018
NSN 5965-01-180-3903
NSN 5930-01-441-4510
NSN 5999-00-935-8684
NSN 5999-01-247-5950
NSN 5950-01-441-1961
NSN 6105-01-225-3536
NSN 6240-00-518-2400