Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 431908 found under Connector Tube Main by E A Patten Co The. The National Stock Number assigned to this part is 2840008003945, and the Federal Supply Class is 2840 Gas Turbines And Jet Engines Aircraft Prime Moving And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 431908.