Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B40-80-8071 found under Mount Resilient Wea by Skf Usa Inc. The National Stock Number assigned to this part is 5342015269009, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B40-80-8071.