MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can withstand temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Made with high-strength aluminum shells, they come with plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. The connectors, compliant with MIL-DTL-38999 I military specifications, also include RoHS certified cadmium-free finishes. With front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, they provide secure and reliable connectivity. Suitable for crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax), these connectors are ideal for demanding industrial and military applications.