Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HU7500CBL found under Gear Assembly Speed Decreaser by Excello Corp Machine Tool Prod. The National Stock Number assigned to this part is 3010008575693, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HU7500CBL.