MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they feature front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Constructed with high strength aluminum shells, these connectors come with a choice of plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Meeting military specification MIL-DTL-38999 I, they are ideal for applications requiring reliable and durable electrical connections in demanding environments.