Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T55.12.050 found under Lamp Incandescent by Jc Lampes. The National Stock Number assigned to this part is 6240121422904, 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 T55.12.050.