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 6240-00-956-6424
NSN 5990-00-033-8128
NSN 5945-00-465-8465
NSN 6650-01-591-5057
NSN 5965-00-964-1756
NSN 5996-00-778-8663
NSN 6220-00-956-0565
NSN 5835-01-615-8864
NSN 5920-01-381-1306
NSN 5920-01-277-6019
NSN 2925-01-445-4095
NSN 7035-01-491-3981