Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D11 11439-0124 found under Rotorengine Poppet Valve by Fairbanks Morse Llc. The National Stock Number assigned to this part is 2815016960028, 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 D11 11439-0124.