Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 13375503K found under Rotor Disc Brake by Kelsey Hayes Company Inc. The National Stock Number assigned to this part is 2530014614732, 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 13375503K.