Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SKT 81873 found under Bit Screwdriver by Amco Products Inc. The National Stock Number assigned to this part is 5120015297028, 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 SKT 81873.