Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 444B246 found under Lamp Flashtube by Hathaway Inc. The National Stock Number assigned to this part is 6240004513016, 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 444B246.