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 6130-00-541-8468
NSN 4140-01-155-3101
NSN 5915-01-200-7449
NSN 5945-00-004-6345
NSN 6150-01-469-9700
NSN 6650-00-943-4247
NSN 6650-01-256-3413
NSN 6685-01-359-2723
NSN 5855-01-100-3272
NSN 5950-00-497-2896
NSN 6130-01-543-0697
NSN 5915-00-231-9686