Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QT13 35-4 found under Lamp Fluorescent by Eiko Ltd. The National Stock Number assigned to this part is 6240014195267, 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 QT13 35-4.