MIL-DTL-38999 Series I connectors feature up to 128 contacts within 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, these connectors offer versatility with front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they ensure reliable connections. Constructed with high-strength aluminum shells and offering plating options like cadmium and electroless nickel, these connectors are ideal for military and aerospace applications. RoHS certified finishes are also available, meeting environmental compliance standards. The MS27496 connectors, known for their durability and performance, ensure secure and efficient electrical connections in demanding environments.