Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B58439 found under Nozzle Turbine Nonaircraft Gas T by Siemens Demag Delaval Turbomachi. The National Stock Number assigned to this part is 2835009733864, and the Federal Supply Class is 2835 Gas Turbines And Jet Engines Non-Aircraft Prime Mover Aircraft Non-Prime Mover And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B58439.