MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they come with M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. These connectors, designed for harsh environments, include front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells, they offer plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Certified for RoHS compliance, they ensure reliable performance in demanding applications.