The 123-0410-12-103 is a miniature oil-tight panel indicator designed for reliable status indication in industrial and electronic equipment. It features a T-3 1/4 configuration with an incandescent miniature bayonet lamp and solder-type terminals for secure electrical connections. The indicator is housed in a polycarbonate dome cap with white nickel metal finish and includes watertight hardware, providing protection against moisture and environmental contaminants. The mounting hole size is 11/16 inches, allowing for standard panel integration. This component is ideal for applications requiring compact, durable visual feedback in harsh or oil-exposed environments, such as machinery control panels, industrial equipment, and automotive systems.