Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40709 found under Clutch Assembly Friction by Woods T B Sons Co. The National Stock Number assigned to this part is 3010013105457, 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 40709.