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 2925-00-391-0331
NSN 5975-01-410-8315
NSN 5920-00-357-0260
NSN 4140-01-622-4375
NSN 2925-00-724-9252
NSN 6135-01-098-3020
NSN 6645-00-586-7198
NSN 6105-01-430-4030
NSN 6150-01-468-5603
NSN 5935-01-580-5725
NSN 6145-01-595-5171
NSN 6130-01-330-6055