Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 000E4890 found under Insert Engine Valve Seat by Bukh A S. The National Stock Number assigned to this part is 2815013235058, 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 000E4890.