Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 415S15 found under Milling Machine Horizontal Unive by Giddings And Lewis Inc. The National Stock Number assigned to this part is 3417004451194, and the Federal Supply Class is 3417 Milling Machines. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 415S15.