Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CSG-45-50-2UH found under Gear Assembly Speed by Harmonic Drive Llc. The National Stock Number assigned to this part is 3010016508128, 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 CSG-45-50-2UH.