Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M40-02079 found under Impeller Fan Axial by Cooper Notification Inc. The National Stock Number assigned to this part is 4140016266525, and the Federal Supply Class is 4140 Fans Air Circulators And Blower Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M40-02079.