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 6240-00-607-4303
NSN 5990-01-102-8342
NSN 5985-00-918-2962
NSN 6610-00-929-6249
NSN 5935-01-385-4436
NSN 5990-00-234-8944
NSN 5960-01-453-6170
NSN 5990-00-419-0236
NSN 5895-01-608-4242
NSN 6610-00-186-9180
NSN 2925-01-442-0878
NSN 2925-01-098-9549