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 7035-00-135-4758
NSN 5915-00-824-0196
NSN 5930-00-395-2184
NSN 6610-01-534-5747
NSN 6645-00-494-3065
NSN 5915-00-267-9857
NSN 5835-01-116-2369
NSN 2925-01-389-6874
NSN 6650-00-119-5917
NSN 5998-01-151-1169
NSN 7035-01-649-8977
NSN 5998-01-251-1541