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 6620-01-340-9425
NSN 4140-01-296-2361
NSN 5920-01-634-0250
NSN 6130-00-335-9712
NSN 6650-01-423-1348
NSN 5945-01-350-3649
NSN 5999-01-214-5909
NSN 5999-01-414-6464
NSN 5990-01-497-0093
NSN 5945-01-358-2664
NSN 5895-00-990-2798
NSN 6145-00-937-3536