Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HL4 BUILD 08 found under Engine Diesel by Astec America Inc. The National Stock Number assigned to this part is 2815013233122, 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 HL4 BUILD 08.