Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3U40203-01 found under Motor Generator by Ward Leonard Electric Company Inc. The National Stock Number assigned to this part is 6125000890940, and the Federal Supply Class is 6125 Converters Electrical Rotating. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3U40203-01.