Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5270-58 found under Light Chemiluminescent by American Cyanamid Co. The National Stock Number assigned to this part is 6260010868077, 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 5270-58.