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 6220-01-279-3628
NSN 6620-00-030-2894
NSN 6130-01-303-6776
NSN 5920-01-395-4209
NSN 5935-01-151-5989
NSN 6650-00-872-0942
NSN 5965-00-285-0745
NSN 6240-01-546-9756
NSN 5835-00-931-5568
NSN 5950-00-923-5260
NSN 6610-01-346-2802
NSN 5855-01-641-8826