The ITT CANNON part 121537-1055 is a high-quality Connector Accessory designed for O-Ring Box Mounting Receptacles with a Mounting Flange Shell Size 18. The Shell Size 18 is specifically engineered for connectors with a Spring Contact design, allowing for secure and reliable electrical connections. This accessory features a durable Mounting Flange Shell, ensuring easy installation and robust performance. It is an essential accessory for various industrial applications, offering convenience and versatility. Trust ITT CANNON for top-notch Connector Accessories that meet the highest standards of quality and performance.