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 6645-00-321-6071
NSN 5990-00-070-8652
NSN 5999-01-600-2644
NSN 6150-01-568-9957
NSN 5915-01-145-6071
NSN 7035-01-145-5059
NSN 5930-01-481-3071
NSN 5895-00-200-7114
NSN 6130-01-425-4733
NSN 6220-01-384-2163
NSN 6620-01-428-3930
NSN 6110-01-174-6249