MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts sealed for environmental protection. With operating temperatures ranging from -65 °C to 200 °C, they ensure performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors accommodate M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering plating options such as gold, electroless nickel, and cadmium-free finishes, they meet diverse application needs. Whether for front wall mount, rear wall mount, or jam nut receptacles, these connectors provide durability and conductivity, making them ideal for military and industrial applications.