The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mount types including front wall, rear wall, and jam nut receptacles, these connectors offer RFI grounding plugs and utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells, they come with plating options such as cadmium finishes, electroless nickel, and black anodized aluminum. These connectors, compliant with MIL-DTL-38999 I military specification, ensure reliable performance in demanding applications.