Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1066 50 38 50 0 found under Lamp Incandescent by Ahearn And Soper Co Inc. The National Stock Number assigned to this part is 6240012050004, 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 1066 50 38 50 0.