Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2P R0UGH B0RE found under Coupling Shaft Flex by Reliance Electric Company. The National Stock Number assigned to this part is 3010012777647, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2P R0UGH B0RE.