Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B206 found under Clutch Positive Vehicular by Emerson Power Transmission Corpo. The National Stock Number assigned to this part is 2520004535464, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B206.