Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 450-3516 found under Gear Bevel by Bae Systems Information And Electronic Systems Integration I. The National Stock Number assigned to this part is 3020008736266, and the Federal Supply Class is 3020 Gear Pulley Sprocket And Transmission Chain. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 450-3516.