Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 640385400 found under Wheel Metal Tire by Duffnorton Co Inc. The National Stock Number assigned to this part is 2530012215756, and the Federal Supply Class is 2530 Vehicular Brake Steering Axle Wheel And Track Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 640385400.