MIL-DTL-38999 Series I connectors are designed for demanding environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. They are ideal for military and aerospace applications, offering secure connectivity with gold-plated removable crimp contacts. The jam nut mounting, bayonet coupling design ensures easy installation and maintenance, making them a dependable choice for rugged environments.