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 5996-01-558-2862
NSN 5990-01-233-4178
NSN 6110-00-525-3418
NSN 5985-01-223-2188
NSN 5975-00-833-7701
NSN 5910-01-382-8243
NSN 6610-01-332-5126
NSN 5855-00-879-5849
NSN 5975-00-732-1289
NSN 6620-00-693-7751
NSN 6135-01-151-2705
NSN 5990-01-143-2518