Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D00-040974-00-00 found under Clutch Assembly Fri by Clayton Hill Greenhouse Co. The National Stock Number assigned to this part is 2520012941677, 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 D00-040974-00-00.