Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 100057022 found under Lamp Incandescent by Electro Switch Corp. The National Stock Number assigned to this part is 6240001680411, 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 100057022.