Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2639430 found under Gear Spur by Honeywell Aerospace. The National Stock Number assigned to this part is 3020009883296, 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 2639430.