MIL-DTL-3883 Cord, Electrical, Shielded \(Audio Frequency\)This specification covers electrical cords composed of 1 to 7 conductors, 20 AWG, Styrene butadiene rubber insulated and jacketed, with a shield beneath the jacket. These cords are intended for use in audio frequency applications, at temperatures down to -55 ??C \(see 3.2 for individual types\).