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 5895-00-218-1355
NSN 2925-00-017-9807
NSN 2925-01-143-0092
NSN 4140-00-053-1840
NSN 6110-01-462-1538
NSN 5920-00-700-2942
NSN 6240-00-419-4301
NSN 6240-00-159-4403
NSN 5935-01-406-3486
NSN 5915-00-166-8166
NSN 5999-01-590-8213
NSN 5920-01-393-3011