MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for robust connectivity. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. These connectors are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range from -65 °C to 200 °C. Compliant with military specification MIL-DTL-38999 I, they meet stringent standards for durability and quality. Available in 9 shell sizes and 52 insert arrangements, they accommodate various application requirements. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS compliant finishes, they provide corrosion resistance and longevity. Suitable for demanding applications, these connectors are ideal for aerospace, defense, and industrial use.