MIL-DTL-22931 Cables, Radio Frequency, Semirigid, Coaxial, Semi-Air-Dielectric, General Specification ForThis specification covers semi-air-dielectric, coaxial, semirigid radio frequency cables with smooth, corrugated, or braided outer conductors with outside diameters ranging from .500 to 3.125 inches, with an impedance of 50 or 75 ohms \(see 3.1\). The operating temperature ranges are -55 Degrees C to +80 Degrees C or -55 Degrees C to +200 Degrees C, as specified \(see 3.1\), and the storage temperature capability is -65 Degrees C.