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 5855-01-100-3272
NSN 5930-01-399-2262
NSN 7035-01-302-5359
NSN 5930-01-032-4502
NSN 6240-01-315-9303
NSN 4140-00-643-3744
NSN 5895-01-186-3665
NSN 6110-01-353-0619
NSN 5915-01-277-7083
NSN 6150-01-378-7912
NSN 7035-01-502-3830
NSN 6610-01-425-1523