Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T20-0072 found under Gear Spur by Tampo Industries Inc. The National Stock Number assigned to this part is 3020012147348, 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 T20-0072.