Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 100561-2 found under Lamp Incandescent by Telectro Mek Inc. The National Stock Number assigned to this part is 6240013360732, 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 100561-2.