Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC42003 001 found under Pulley Groove by Kaman Aerospace Corporation. The National Stock Number assigned to this part is 3020015060685, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KC42003 001.