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 6130-01-574-4639
NSN 6110-01-295-6275
NSN 6130-01-096-7551
NSN 5998-00-972-8683
NSN 5965-01-132-1427
NSN 5835-00-228-9082
NSN 6320-00-646-3311
NSN 6150-00-171-9139
NSN 6610-01-168-2051
NSN 6240-01-503-5809
NSN 5965-00-471-5018
NSN 5855-01-577-2581