Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 021 0246 60HZ found under Clutch Power Unit by Wayne Dalton Corp. The National Stock Number assigned to this part is 3010011826523, 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 021 0246 60HZ.