The AEC 3057-A is a commercial version of the VG95234 cable clamp with bushing.
Industrial cable clamp with rubber bushing that is meant for use with VG95234 Series Reverse Bayonet connectors. Rubber bushing allows for use with unjacketed cable or wire. Quality approved for military applications. Bushing can also be used as a reducing bushing. Cable or wire should be centered in the jaws of clamp for maximum grip.