M27500B20WP4U00 is a 4 conductor cable with no shielding and no jacket with an M22759/91 inner conductor

 M27500 cable products are composed of mil spec inner conductors, single or double shields and single or double jackets. This milspec cable is ideal for use in aircraft 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, milspec cable is used in a wide range of general purpose electrical applications.