Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 25A TB-CD1 found under Lamp Incandescent by General Electric Co. The National Stock Number assigned to this part is 6240006898504, 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 25A TB-CD1.