Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 23020 found under Bit Screwdriver by A T And G Inc. The National Stock Number assigned to this part is 5120013673778, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 23020.