Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K4 1210 06 found under Lamp Incandescent by Kreonite Inc. The National Stock Number assigned to this part is 6240012924659, 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 K4 1210 06.