Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WE04.03.1901 found under Lamp Incandescent by Jc Lampes. The National Stock Number assigned to this part is 6240006359800, and the Federal Supply Class is 6240 Electric Lamps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WE04.03.1901.