Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X70M0231 found under Lamp Incandescent by Mack Trucks Inc. The National Stock Number assigned to this part is 6240660347725, and the Federal Supply Class is 6240 Electric Lamps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like X70M0231.