Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6740-20 found under Nut Runner And Screwdriver Elect by Milwaukee Electric Tool Corporation. The National Stock Number assigned to this part is 5130001777085, and the Federal Supply Class is 5130 Hand Tools Power Driven. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 6740-20.