Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 920412 found under Tappet Engine Poppet Valve by Clark Material Handling Co. The National Stock Number assigned to this part is 2815014188913, 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 920412.