Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 6217104-977 found under Lamp Incandescent by Rosemount Tank Radar Ab. The National Stock Number assigned to this part is 6240012577841, 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 6217104-977.