Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SC 0307 166 found under Chain Silent by Emerson Power Transmission Corpo. The National Stock Number assigned to this part is 3020013157653, 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 SC 0307 166.