Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CS21441PC found under Ring Sleeve Gear by Emerson Power Transmission Corpo. The National Stock Number assigned to this part is 3010000190704, 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 CS21441PC.