Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 313001 ITEM NO 17 found under Gear Assemblyworm by Tri Tec Manufacturing Llc. The National Stock Number assigned to this part is 3020016761495, 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 313001 ITEM NO 17.