Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T-3 1 4B2A 9NE-5H found under Lamp Incandescent by Dialight Corporation. The National Stock Number assigned to this part is 6240012967404, 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 T-3 1 4B2A 9NE-5H.