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 5990-00-366-0112
NSN 5935-00-884-2239
NSN 6620-01-535-6925
NSN 5925-00-262-6087
NSN 6130-01-306-2536
NSN 5998-01-066-9982
NSN 6620-00-536-5028
NSN 6145-01-388-4460
NSN 6130-01-488-5059
NSN 6135-01-398-5922
NSN 5895-00-596-8678
NSN 4140-01-205-6124