MIL-DTL-38999 Series I connectors feature up to 128 contacts housed within an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering various mounting options including front wall mount, rear wall mount, and jam nut receptacles, these connectors are built for durability. With 9 shell sizes and 52 insert arrangements available, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells, they come in plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. RoHS-certified finishes are also offered. Perfect for military applications, these connectors provide reliable connectivity in demanding conditions.