Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B5240-153 found under Brake Drum by Container Service Inc. The National Stock Number assigned to this part is 2530010087565, 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 B5240-153.