Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5S6854 found under Rocker Arm Engine Poppet Valve by Holt Bros. The National Stock Number assigned to this part is 2815004859421, 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 5S6854.