Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B3175 found under Clutch Magnetic Vehicular by Electrometrics. The National Stock Number assigned to this part is 2520010873114, 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 B3175.