Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CF664 found under Rule Machinists by General Tools Manufacturing Co Llc. The National Stock Number assigned to this part is 5210014349457, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like CF664.