The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, they ensure secure connections. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable performance. Constructed with high-strength aluminum shells and various plating options like cadmium and nickel, they meet stringent military specifications for durability. RoHS certified finishes are also available, catering to environmental compliance needs. Perfect for demanding applications, these connectors guarantee conductivity and protection in diverse settings.