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 5905-01-099-8335
NSN 5835-00-887-6420
NSN 6220-00-782-2058
NSN 6145-01-117-2458
NSN 5998-00-649-8680
NSN 5990-01-212-2037
NSN 6645-00-754-4108
NSN 5945-01-162-4206
NSN 5965-01-453-1108
NSN 5915-00-203-2380
NSN 4140-01-474-6268
NSN 6620-01-448-1423