Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 51-003-264 found under Motor Generator by Siemensallis Inc. The National Stock Number assigned to this part is 6125008775572, 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 51-003-264.