1.1 This specification establishes the requirements for naval brass rod, bar, and shapes produced from Copper Alloy UNS Nos. C46200, C46400, C47940, C48200, or C48500.1.1.1 For piston-finish rod or shafting refer to the Other Requirements Sectio This specification establishes the requirements for rods, bars, and shapes of naval brass with Copper Alloy UNS Nos. C46200, C46400, C47940, C48200, and C48500. Tempers available under this specification are M30 (as-hot extruded), O60 (soft annealed),