The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors come in wall mount and jam nut receptacles, with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells, they offer a choice of plating options including electroless nickel and cadmium finishes. RoHS compliant versions are also available, meeting stringent environmental standards for your connectivity needs.