Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9421-LS8 found under Parts Kit Electro Mechanical Rot by Square D Co. The National Stock Number assigned to this part is 3010015616659, 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 9421-LS8.