Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KSC506 found under Cutter Milling Woodruff Keyseat by Pohl Tool Co. The National Stock Number assigned to this part is 3455001899147, and the Federal Supply Class is 3455 Cutting Tools For Machine Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KSC506.