Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 100B found under Grinding Machine Drill by Winslow Aerospace Tool Subsidiary. The National Stock Number assigned to this part is 3415000977269, and the Federal Supply Class is 3415 Grinding Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 100B.