Exhaust Valve Body for Crosman 130, 137, 140, 147, 1400, etc. Crosman had them made out of Brass, Steel, and Aluminum. All were used and sold by the factory under the same part number. We do not make a distinction either. I suggest using the aluminum in the pistols and the steel or brass in the rifles. The material does not have to match the material of the exhaust valve body.
