MIL-DTL-38999 Series I connectors, compliant with military specification, offer up to 128 contacts in an environmentally sealed insert. Operating between -65°C to 200°C, these harsh environment connectors come in various configurations including front and rear wall mount receptacles and RFI grounding plugs. With 9 shell sizes and 52 insert arrangements, they feature M39029 rear release crimp contacts in multiple sizes. Constructed with high-strength aluminum shells, they are available in plating options like electroless nickel and cadmium finishes. Ideal for demanding applications, these connectors provide reliable performance with RoHS certified cadmium-free options.