Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NAFB5647B found under Shaft by Coltec Industries Inc. The National Stock Number assigned to this part is 2815001724839, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like NAFB5647B.