MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various receptacle types including front and rear wall mount, jam nut, and box mount, they offer versatility in connectivity solutions. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, these connectors accommodate diverse applications. Constructed with aluminum shells and offering plating choices like electroless nickel, they ensure durability and reliability. Meeting MIL-DTL-38999 II standards, these circular connectors are ideal for military and industrial use, providing secure and efficient electrical connections.