MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, with an operating temperature range of -65 °C to 200 °C. Designed for harsh environments, these thin-walled connectors come in various mounting configurations such as front and rear wall mount, jam nut, and box mount receptacles. Offered in aluminum shells with plating options including cadmium and nickel, they ensure reliable performance in demanding conditions. With M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors provide versatility in connectivity. The gold-plated contacts, bayonet coupling, and RoHS compliant finishes make them suitable for military and industrial applications requiring durability and high-performance standards.