Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 51539 002N found under Regulator Voltage by Lucas Aerospace Power Equipment. The National Stock Number assigned to this part is 6110012939775, and the Federal Supply Class is 6110 Electrical Control Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 51539 002N.