Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40492101 found under Gear Assembly Reade by General Dynamics Information Systems. The National Stock Number assigned to this part is 3020001334917, 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 40492101.