Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AP72ZW130 found under Gear Antibacklash Spur by W M Berg Inc. The National Stock Number assigned to this part is 3020002018525, 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 AP72ZW130.