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 5965-01-107-8549
NSN 5990-00-827-0684
NSN 6610-00-789-4719
NSN 5960-01-378-1729
NSN 5975-00-583-8625
NSN 5915-00-683-8248
NSN 6685-01-274-2185
NSN 6620-01-602-8402
NSN 6650-01-158-6888
NSN 5920-01-316-5014
NSN 4140-00-577-3512
NSN 5996-01-066-8075