The wire specification M25038 is one of the many military-rated products available at WireMasters. Built specifically for critical circuit applications, the insulated single wire can withstand harsh environments and demanding conditions involving exposure to flames with temperatures up to 260° C. M25038 Construction and Specifications Meeting military standards, the M25038 wire is built with inorganic fire-resistant insulation and a nickel-coated copper conductor. The high-temperature wire is offered in a standard weight product and has a lightweight option, both with voltage ratings up to 600 volts. WireMasters provides full paperwork for Mil-Spec products, including the DFAR Compliance Certification on the M25038 products, which is essential for fire-resistant wires such as this specification.