Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AL20943A found under Guide Engine Poppet Valve Tappet by Coltec Industries Inc. The National Stock Number assigned to this part is 2815000097263, 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 AL20943A.