Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MS25237-338 found under Lamp Incandescent by Selex Es Limited. The National Stock Number assigned to this part is 6240005426571, 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 MS25237-338.