Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AT100A-2-1 4AN470 found under Rivet Set Hand by Snap On Incorporated. The National Stock Number assigned to this part is 5120010733999, 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 AT100A-2-1 4AN470.