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 5975-00-518-1733
NSN 5905-01-606-1237
NSN 5999-01-034-0716
NSN 5895-01-349-5830
NSN 5835-01-268-1924
NSN 5999-01-183-6520
NSN 5965-00-725-4453
NSN 5998-00-203-1232
NSN 6110-00-866-8590
NSN 6650-01-406-4959
NSN 6320-00-082-5868
NSN 5835-00-754-7255