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 5935-01-457-3960
NSN 5999-01-090-9014
NSN 4140-01-323-4279
NSN 5996-01-085-9491
NSN 5835-00-419-6576
NSN 6650-01-425-1934
NSN 6135-01-493-8375
NSN 5920-01-306-5624
NSN 6110-01-400-4207
NSN 5915-01-173-2904
NSN 5895-01-039-6971
NSN 5895-01-114-9923