103-1235-403 is a white neon panel mount indicator cap designed for the 103 Series oiltight indicator system with a 1" mounting hole. It features a polycarbonate construction with a chrome-plated brass bezel, providing durability and corrosion resistance in demanding industrial environments. The cap is compatible with T 4 1/2 candelabra screw base neon lamps and operates at voltages of 105–125 V or 210–250 V AC-DC. With a maximum dimension of 30.48 mm (1.20") and a 1-27 NS thread, this indicator is ideal for machinery control panels, process monitoring, and status indication applications where reliable visual feedback is essential.