MIL-DTL-38999 Series I connectors offer reliable performance in harsh environments with up to 128 contacts sealed within their inserts. Designed for durability, these connectors feature a wide operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts and come in high-strength aluminum shells with multiple plating options for enhanced corrosion resistance. Offering bayonet coupling and front wall mount, rear wall mount, and jam nut receptacles, they meet stringent military specifications for rugged applications. RoHS compliant finishes ensure environmental responsibility, making them ideal for diverse connectivity needs in demanding settings.