Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WAUG402 found under Insert Engine Valve Seat by Wausau Plant Machining Div. The National Stock Number assigned to this part is 2815003626890, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WAUG402.