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 4140-01-485-9468
NSN 6105-01-592-8851
NSN 6130-01-597-6578
NSN 6650-01-305-3827
NSN 5920-01-075-3354
NSN 6130-00-647-8471
NSN 5920-01-141-6885
NSN 5920-00-798-5710
NSN 6220-00-966-5074
NSN 6135-01-614-5335
NSN 5996-01-655-1227
NSN 6320-01-173-7950