MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 I, ensure reliable performance in a wide temperature range from -65 °C to 200 °C. Constructed with high-strength aluminum shells and available in various plating options including cadmium-free finishes, they guarantee durability and environmental sealing. Utilizing M39029 rear release crimp contacts, these connectors are ideal for aerospace, defense, and industrial applications where ruggedness and reliability are paramount.