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 6150-01-250-2772
NSN 6240-01-020-9910
NSN 6650-00-312-1200
NSN 6145-01-391-0482
NSN 6105-01-438-6955
NSN 5998-01-114-3416
NSN 5960-00-078-9500
NSN 5930-01-421-2715
NSN 4140-01-592-0628
NSN 5960-00-833-7438
NSN 2925-00-355-5130
NSN 6220-01-032-5269