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 6320-00-853-1920
NSN 4140-00-679-9512
NSN 6685-00-930-9257
NSN 5930-00-807-7471
NSN 6610-00-327-7540
NSN 5998-00-574-3496
NSN 6150-01-400-4211
NSN 6145-01-203-6583
NSN 6150-01-193-5372
NSN 5999-01-551-0940
NSN 6135-00-862-5736
NSN 5905-01-046-1581