Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 52B9144-6 found under Sprocket Wheel by Engineered Arresting Systems. The National Stock Number assigned to this part is 3020001289822, 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 52B9144-6.