Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PI1457 found under Shaft Clutch by Osgood Co The. The National Stock Number assigned to this part is 2520003840953, 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 PI1457.