MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for extreme operating temperatures ranging from -65 °C to 200 °C. This versatile connector family offers front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, suitable for various applications. With 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, ensuring reliable connectivity. Crafted from high-strength aluminum, these connectors are available in different plating options, including cadmium-free finishes, meeting RoHS compliance standards. Ideal for military and industrial use, they guarantee durable performance in harsh environments.