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 6130-01-345-2177
NSN 6110-01-578-5595
NSN 6105-00-153-7967
NSN 6645-00-080-1087
NSN 5895-01-510-9431
NSN 6620-01-602-8402
NSN 5960-01-461-9284
NSN 6240-00-838-9030
NSN 5965-01-353-6380
NSN 5990-00-145-1187
NSN 6145-01-331-2386
NSN 6145-01-382-1681