The 10-580903-223 is a protective metal cap intended to seal the front of size 22 Amphenol GT series plugs, such as the GT06 and GT08 models. This cap features a durable olive drab cadmium plate finish for corrosion resistance in harsh environments. It has a maximum diameter of 1.563 inches (39.7 mm) and a maximum length of 1.260 inches (32 mm). An included retention chain, approximately 5.520 inches (140 mm) long, allows the cap to be secured to equipment to prevent loss. This accessory is ideal for protecting unmated plugs from moisture, dust, and physical damage in applications like rail, mass transit, and other industrial settings.