Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 403S REF DWG 11409-D found under Clutch Positive Nonvehicular by Force Control Industries Inc. The National Stock Number assigned to this part is 3010014528712, 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 403S REF DWG 11409-D.