M27500 cables are unique, QPL cable constructions of coated copper mil-spec inner conductors. 27500 cables use military specification wire, and can be single or multi-conductor. The cable can have single or double shields and single or double jackets. The m27500 specification is ideal for use in aircraft avionics and ground support equipment due to its ability to operate in a broad range of temperatures. In addition to being a defense and aerospace cable, this high performance, mil spec cable is used in a wide range of general purpose electrical applications. This specification is controlled by NEMA under the designation wc27500.