Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R809-2B found under Motor Tachometer Generator by Kearfott Corporation. The National Stock Number assigned to this part is 6105005787055, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R809-2B.