MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, suitable for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer flexibility for different applications. These connectors, made of high-strength aluminum, come in wall-mount receptacles with bayonet coupling and RFI grounding options. Utilizing M39029 rear release crimp contacts, they ensure reliable connections with gold plating. With RoHS compliant finishes like electroless nickel and iridescent yellow cadmium, they meet environmental standards. Perfect for military and industrial use, these connectors guarantee durability and performance.