Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 717265K21 found under Guide Band Clutch by Bcp Construction Products. The National Stock Number assigned to this part is 2520012480118, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 717265K21.