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 6610-01-534-7683
NSN 5915-01-143-2482
NSN 5920-00-463-5057
NSN 5920-01-354-8926
NSN 5996-01-074-8161
NSN 5999-00-256-5085
NSN 2925-01-114-8484
NSN 6620-01-459-6401
NSN 5915-00-280-9082
NSN 5985-01-338-5061
NSN 5990-01-212-2037
NSN 6620-01-437-3146