MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts in a high-strength aluminum shell, designed for harsh environments. With operating temperatures ranging from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various plating options, including cadmium-free finishes, they meet stringent military specifications for durability. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors ensure secure and efficient connectivity. With 52 insert arrangements and M39029 rear release crimp contacts, they provide versatility for a wide range of applications. Suitable for wall mounting and bayonet coupling, they are ideal for aerospace, defense, and other demanding industries.