MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. These connectors, offered in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, provide reliable electrical connections. With 52 insert arrangements and M39029 rear release crimp contacts, they offer versatility in applications. Available in aluminum shells with plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure durability and performance. Meeting MIL-DTL-38999 II specifications, they guarantee quality and compliance for military and industrial use.