MIL-DTL-38999 Series I connectors offer high performance in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. Designed for durability, these connectors can operate in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they meet military specifications for reliability. With 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts, ensuring secure connections. Crafted from high-strength aluminum, they come with a choice of plating options, including cadmium-free finishes for RoHS compliance. Suitable for demanding applications, these MIL-DTL-38999 I connectors are ideal for military, aerospace, and industrial use.