MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an insert, designed for harsh environments with a wide operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut receptacles, and RFI grounding plugs, these connectors offer versatility in military and aerospace applications. With 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, supporting diverse connectivity needs. Crafted from high-strength aluminum, they come with plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, catering to different environmental requirements. RoHS compliant finishes are also available, ensuring regulatory adherence. The MIL-DTL-38999 I connectors are ideal for demanding scenarios where reliability and performance are paramount.