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 5960-01-386-3855
NSN 6650-01-177-2673
NSN 5895-00-930-9813
NSN 5996-00-444-9580
NSN 6320-01-116-3980
NSN 6135-01-512-8740
NSN 2925-00-808-5077
NSN 5905-00-961-1291
NSN 5998-01-587-4943
NSN 4140-01-492-5268
NSN 6320-00-098-2858
NSN 5975-01-388-9789