The MIL-DTL-38999 Series II connectors boast exceptional versatility and durability for demanding environments. With up to 128 contacts housed in a rugged insert, these connectors are fully environmentally sealed and capable of operating in temperatures ranging from -65 °C to 200 °C. Featuring 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 connectivity. Crafted from aluminum with plating options such as cadmium-free finishes, including electroless nickel, they ensure robust performance while meeting RoHS compliance standards. Ideal for military and industrial applications, these connectors guarantee secure and efficient electrical connections in harsh conditions.