Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PT146 found under Gear Power Takeoff by Marmon Group Inc The. The National Stock Number assigned to this part is 3020006982842, 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 PT146.