MIL-DTL-38999 Series I connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating range of -65°C to 200°C. Available in various configurations including front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, they offer versatility for military and aerospace applications. With 52 insert arrangements utilizing M39029 rear release crimp contacts, these connectors ensure reliable connections. Constructed with high-strength aluminum shells and offering plating options like cadmium and nickel, they meet stringent performance standards. RoHS certified finishes are also available, catering to environmental regulations. Suitable for demanding environments, these connectors guarantee durability and conductivity for critical operations.