The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in front wall mount, rear wall mount, and jam nut receptacle options. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Constructed with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, they meet stringent military specifications. These connectors, with gold-plated contacts and bayonet coupling, are ideal for applications requiring durability and conductivity. Whether for aerospace, defense, or industrial use, the MIL-DTL-38999 Series I connectors provide a dependable solution for critical connectivity needs.