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 5975-01-283-7847
NSN 5996-00-456-8705
NSN 5965-00-785-5100
NSN 5950-01-581-1221
NSN 5960-00-018-3477
NSN 6620-00-589-0071
NSN 5855-01-100-3272
NSN 5935-01-108-7633
NSN 5855-00-138-2386
NSN 6610-00-240-5437
NSN 5960-00-933-5765
NSN 5996-00-583-9498