The MIL-DTL-38999 Series I connectors boast high durability, with up to 128 contacts housed in an environmentally sealed insert. Operating flawlessly in temperatures ranging from -65 °C to 200 °C, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, alongside RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. Crafted from high-strength aluminum, these connectors come with various plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Their RoHS certified finishes cater to diverse environmental requirements, making them a trusted choice in demanding applications.