Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28CS2EM0D found under Valve Assembly by Curtiss Wright Electro Mechanical Corporation Dba Steam And Air Solutions Div Cu. The National Stock Number assigned to this part is 4820001436835, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 28CS2EM0D.