MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed from high strength aluminum, these connectors come in different plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity for military and industrial applications, with options for light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum plating. Ideal for demanding environments, these MIL-DTL-38999 I connectors guarantee durability and performance in critical operations.