Abstract: An anti-short bushing to be inserted between a metal sheath and an enclosed wire of a flexible armored cable of the kind whose sheath has a groove on its interior surface, has a generally tubular body, and a retainer attached to and movable relative to the body and configured so that, when the bushing is inserted, the wire bears against the retainer, and either the retainer is forced against the inner wall of the metal sheath, or the wire causes the retainer to seat in the groove. In another aspect, the invention features an anti-short bushing having a generally tubular body with a flange at one end and a ridge between the flange and the tubular body, configured so as to engage a cut edge of the cut end of the sheath.