MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts sealed for protection. With an extensive operating temperature range from -65°C to 200°C, these connectors ensure reliability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate diverse connectivity needs. The connectors, crafted with durable aluminum shells and plated with options like electroless nickel and cadmium, guarantee long-lasting performance. Designed for military specifications, they meet stringent standards for rugged applications. The jam nut mounting, bayonet coupling, and removable crimp contacts further enhance their versatility. Suitable for both wall and jam nut mounting receptacles, these connectors are ideal for demanding environments.