The 15324981 is a blue, loose-piece cable seal designed for the Weather-Pack environmentally sealed connection system. Made from durable silicone, this seal is engineered to fit cables with an outer diameter ranging from 3.45 mm to 4.30 mm. It is a component of a system rated for a wide operating temperature range of -40°C to 125°C. This seal is used to create a robust, moisture-proof barrier for individual wire cavities, making it ideal for automotive, marine, and other critical applications requiring protection from environmental hazards.