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 6240-01-293-9068
NSN 6135-00-276-7625
NSN 6685-01-112-0524
NSN 5985-01-210-6071
NSN 5935-01-170-2677
NSN 7035-01-597-7179
NSN 5905-01-291-4431
NSN 5895-00-986-6105
NSN 7035-00-104-7613
NSN 5960-00-018-3477
NSN 6150-00-223-5840
NSN 5985-01-090-9912