The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts housed in a secure insert. With environmental sealing and an impressive operating temperature range from -65°C to 200°C, these connectors ensure reliable performance in extreme conditions. Offering various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for efficient connectivity. Crafted from durable aluminum with plating options like cadmium and nickel, they guarantee longevity and conductivity. Ideal for military and industrial applications, these connectors are a dependable solution for demanding environments.