Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 315A found under Stone Sharpening by Sandvik Wire And Heating Technology. The National Stock Number assigned to this part is 5345005844474, and the Federal Supply Class is 5345 Disks And Stones Abrasive. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 315A.