MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, all meeting military specification MIL-DTL-38999 I. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Suitable for demanding applications, these connectors provide durability and conductivity, making them ideal for aerospace, defense, and industrial use.