MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The connectors come in high-strength aluminum shells with multiple plating options, including cadmium-free finishes. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure reliable performance in demanding applications. The connectors are MIL-DTL-38999 I compliant, meeting stringent military specifications for durability and reliability.