Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D9849-12 found under Button Deburring Tool by Designed Metal Connections Inc. The National Stock Number assigned to this part is 5120000031536, 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 D9849-12.