Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BS13-25 found under Reflector Light by Beseler Charles Co Inc. The National Stock Number assigned to this part is 6260004727279, and the Federal Supply Class is 6260 Nonelectrical Lighting Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BS13-25.