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 7035-01-417-6261
NSN 5910-00-139-3364
NSN 5920-01-104-6198
NSN 5990-01-591-8797
NSN 5930-01-452-3087
NSN 6610-01-462-5980
NSN 6320-01-429-9871
NSN 5950-01-100-7895
NSN 6105-01-033-3017
NSN 5935-01-300-1539
NSN 5999-01-428-4012
NSN 5895-01-341-0684