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 4140-00-106-6780
NSN 6240-01-408-9377
NSN 5998-01-643-6278
NSN 5895-00-153-2595
NSN 5920-01-319-5200
NSN 5945-00-212-9093
NSN 2925-01-599-1901
NSN 5998-01-367-6718
NSN 5950-01-398-2263
NSN 5998-00-884-5125
NSN 6135-01-347-9045
NSN 5999-00-378-9680