MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments. With up to 128 contacts, these circular receptacles feature front wall mount, rear wall mount, and jam nut options for secure installation. Designed for durability, they can withstand temperatures ranging from -65 °C to 200 °C. The connectors are environmentally sealed and come in nine shell sizes and 52 insert arrangements, accommodating various applications. Utilizing M39029 rear release crimp contacts, they ensure reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. The high-strength aluminum shells are available with different plating options, including electroless nickel and cadmium finishes. RoHS compliant versions are also offered, meeting environmental standards. Perfect for military and industrial use, these MIL-DTL-38999 I connectors guarantee performance and longevity in demanding conditions.