Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B74.13 found under Wheel Abrasive by American National Standards Inst. The National Stock Number assigned to this part is 3460001414653, and the Federal Supply Class is 3460 Machine Tool Accessories. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B74.13.