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 5895-00-934-1372
NSN 5835-01-466-5496
NSN 5960-01-163-8905
NSN 6620-00-388-0047
NSN 5835-01-128-9331
NSN 5905-01-381-2552
NSN 5895-01-574-7331
NSN 6620-00-905-6590
NSN 5835-01-310-3846
NSN 6105-01-020-9013
NSN 6150-01-147-3175
NSN 5915-01-452-6069