Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ATA 2255 found under Remover Tool by Astro Tool Corp. The National Stock Number assigned to this part is 5120016182330, 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 ATA 2255.