Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FB5016-1-3 16IN.X1-3 8IN.BORES found under Coupling Shaft Flexible by Reliance Electric Company. The National Stock Number assigned to this part is 3010012856285, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FB5016-1-3 16IN.X1-3 8IN.BORES.