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 5910-01-627-1106
NSN 6110-01-153-7232
NSN 5945-00-954-3055
NSN 5950-00-803-2295
NSN 6110-01-047-7730
NSN 5960-01-495-0859
NSN 5996-01-442-8296
NSN 5998-00-023-8968
NSN 6320-01-532-7491
NSN 2925-01-308-2195
NSN 6220-01-283-7868
NSN 5996-01-658-0704