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 5975-00-859-2180
NSN 5945-01-203-4994
NSN 5930-01-219-1996
NSN 6240-00-079-0112
NSN 6150-01-149-9907
NSN 5999-00-523-2868
NSN 5965-01-455-3738
NSN 5905-01-532-6524
NSN 2925-01-400-2286
NSN 5895-01-211-6807
NSN 7035-01-441-3188
NSN 5945-01-283-1651