MIL-DTL-38999 Series II connectors boast exceptional durability and performance with up to 128 contacts housed within a rugged insert. Designed for harsh environments, these connectors are fully sealed and can operate in temperatures ranging from -65 °C to 200 °C. 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 utilize M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and featuring plating options like gold, electroless nickel, and cadmium-free finishes, they ensure long-lasting functionality. Ideal for military and industrial applications, these connectors meet rigorous standards for environmental resistance and reliability.