Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TLU3E440VACHTGEL found under Heating Element Electrical Nonim by Delavan Inc. The National Stock Number assigned to this part is 4520002004088, 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 TLU3E440VACHTGEL.