Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 66550B8 found under Wheel Pneumatic Tire by Kentucky Mfg Co. The National Stock Number assigned to this part is 2530002875701, 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 66550B8.