Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ZF 108-KTC(254TC found under Gear Assembly Speed Decreaser by U S Dept Of Transportation Federal. The National Stock Number assigned to this part is 3010015772237, 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 ZF 108-KTC(254TC.