MIL-DTL-38999 Series I connectors feature up to 128 contacts, offering robust environmental sealing and a wide operating temperature range from -65 °C to 200 °C. This connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 9 shell sizes and 52 insert arrangements available, they accommodate various applications. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax configurations, these connectors ensure reliable connectivity. Constructed with high-strength aluminum shells and offering plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, they provide durability and performance in demanding environments. RoHS certified cadmium-free finishes are also available, meeting environmental standards. Perfect for military and industrial applications, these MIL-DTL-38999 I connectors deliver secure and efficient electrical connections.