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 6650-01-207-2905
NSN 5996-01-424-7631
NSN 6685-01-575-3645
NSN 5930-01-432-2029
NSN 5905-00-060-1327
NSN 6685-01-323-2136
NSN 6650-01-456-0747
NSN 5915-01-423-7894
NSN 5910-00-467-9302
NSN 6620-01-632-9143
NSN 5990-00-491-8628
NSN 5990-00-147-3144