Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TRC7142G found under Gear Helical by General Steel Tank Co. The National Stock Number assigned to this part is 3020009897368, 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 TRC7142G.