MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and an operating temperature range of -65 °C to 200 °C. This harsh environment connector family includes front and rear wall mount, as well as jam nut receptacles with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they come with plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, including RoHS certified finishes. Perfect for military and industrial applications, these connectors ensure reliable performance in challenging conditions.