Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2473-0286678 W OPTION BOARD found under Ammeter by Sycon Corp. The National Stock Number assigned to this part is 6625012501265, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2473-0286678 W OPTION BOARD.