Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9C311-B found under Clutch Assembly Fri by Link Belt Construction Equipment. The National Stock Number assigned to this part is 3010011811995, 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 9C311-B.