Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5S5918-00 found under Push Rod Engine Poppet Valve by Mil Tech Mfg Inc. The National Stock Number assigned to this part is 2815004873123, 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 5S5918-00.