MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert that is environmentally sealed for reliable performance. With an operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in a variety of plating options, including cadmium-free finishes for RoHS compliance. Whether in front wall mount, rear wall mount, or jam nut receptacles, these connectors ensure durable and efficient connectivity in military and industrial settings.