Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 353 EPC-440V found under Oven Thermal Drying Electric by Steelman Industries Inc. The National Stock Number assigned to this part is 4430014910740, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 353 EPC-440V.