Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3-0GD100A57 found under Gear Helical by Asphalt Equipment Co Inc. The National Stock Number assigned to this part is 3020003608366, 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 3-0GD100A57.