Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number STY CB SIZE 25 0.3755 IN BORE found under Coupling Shaft Flex by Rexnord Industries Llc. The National Stock Number assigned to this part is 3010015000624, 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 STY CB SIZE 25 0.3755 IN BORE.