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 6620-01-151-3986
NSN 6105-00-427-9615
NSN 6135-01-255-9129
NSN 6620-00-085-2908
NSN 6135-01-460-3243
NSN 5999-00-541-5947
NSN 5915-00-518-1644
NSN 6145-00-643-4962
NSN 5999-00-580-1876
NSN 5945-01-042-7389
NSN 5920-00-281-2488
NSN 5975-01-272-6777