Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4J 7 8X1 2IN BORES found under Coupling Shaft Flex by Tb Woodss Corporation. The National Stock Number assigned to this part is 3010010609879, 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 4J 7 8X1 2IN BORES.