What is MIL-Approved Wire/Cable? MIL-approved wire, or MIL-spec wire, is any wiring solution that meets the strict standards developed for use in military applications. As with any military specifications, MIL-approved wire is designed for high performance and high reliability in harsh environments, which also makes it an attractive option for many non-military harsh environment applications. … Continue reading What is MIL-Approved Wire/Cable?