The ITT CANNON part 121537-1052 is a connector accessory specifically designed for O-Ring Box Mounting Receptacles with a Mounting Flange. This accessory is compatible with Shell Size 18 Cylindrical Contacts, making it a perfect solution for various industrial applications. The O-Ring Box Mounting Receptacle provides a secure and reliable connection for your electrical components. Featuring a durable construction and a convenient mounting flange, this connector accessory ensures easy installation and long-lasting performance. Trust ITT CANNON to deliver exceptional quality and functionality for all your connectivity needs.