Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9161.1009R found under Cutoff Machine Abrasive Disk Met by Ridge Tool Company. The National Stock Number assigned to this part is 3405011951708, and the Federal Supply Class is 3405 Saws And Filing Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9161.1009R.