Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1CE90F4W35S4 found under Valve Linear Direct by Eaton Corporation. The National Stock Number assigned to this part is 4820016421905, 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 1CE90F4W35S4.