MIL-DTL-38999 III (D38999) harsh environment connectors are designed for rugged applications, offering reliable performance in demanding conditions. Available in various shell sizes and insert arrangements, they feature M39029 contacts for secure connections. With options for aluminum, stainless steel, and composite shells, as well as a range of plating choices including cadmium-free finishes, they meet diverse requirements. The connectors, including wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, are MIL-DTL-38999 III compliant and suitable for military and aerospace use. With high-temperature and environmental resistance, these connectors ensure dependable connectivity in critical operations.