MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Designed for durability, these connectors have an operating temperature range of -65°C to 200°C. Available in various configurations such as front wall mount, rear wall mount, and jam nut receptacles, they meet stringent military specifications. With a choice of 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable connections. Crafted from high-strength aluminum, they come in different plating options including cadmium-free finishes for RoHS compliance. Suitable for applications requiring secure and durable electrical connections, MIL-DTL-38999 Series I connectors ensure optimal performance in demanding environments.