Special Features:

Ball indicating lights are green; includes 3 polycarbonate coves & 1 door steel; all nameplates are brass, gray, black letters; distribution statement d, military critical technology: export controlled

Properties:

Two or more different types of items, having a common mounting or mounted on each other, which together form a portion of a control-indicator, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.