Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ELC2121LP 440V found under Heating Element Electrical Nonim by Cress Mfg Co. The National Stock Number assigned to this part is 4520011897476, 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 ELC2121LP 440V.