The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, these connectors offer reliable RFI grounding. With 9 shell sizes and 52 insert arrangements, they accommodate M39029 rear release crimp contacts in multiple sizes. Constructed with high strength aluminum shells, they come in a range of plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. RoHS certified cadmium-free finishes are also available. A versatile solution for military and industrial applications, these connectors ensure secure and durable electrical connections in demanding environments.