MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes, these connectors offer front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Constructed with high-strength aluminum shells, they come with plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. RoHS compliant finishes are also available. Ideal for military and industrial applications, these connectors provide secure and durable electrical connections in demanding environments.