Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ELC1228-440V found under Heating Element Electrical Nonim by Cress Mfg Co. The National Stock Number assigned to this part is 4520012227806, 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 ELC1228-440V.