Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2256E found under Valve Assy Air Star by Curtiss Wright Electro Mechanical Corporation Dba Steam And Air Solutions Div Cu. The National Stock Number assigned to this part is 2815003495265, 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 2256E.