Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7747 found under Scraper Valve Seat by Tecumseh Products. The National Stock Number assigned to this part is 5110004737518, and the Federal Supply Class is 5110 Hand Tools Edged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7747.