Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 43F 1000 found under Lamp Incandescent by Del Norte Technology Inc. The National Stock Number assigned to this part is 6240015012604, 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 43F 1000.