Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B430-0407-007 found under Heating Element Electrical Nonim by Heatube Co. The National Stock Number assigned to this part is 4520002894640, 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 B430-0407-007.