Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DPUA0433 found under Lamp Assembly by Altair Avionics Corp. The National Stock Number assigned to this part is 6240015027103, 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 DPUA0433.