MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. With up to 128 contacts housed in an insert, these connectors offer versatility in connectivity. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and available in various plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, they meet diverse application needs. Operating in temperatures ranging from -65 °C to 200 °C, these connectors are ideal for demanding industrial and military environments. RoHS certified cadmium-free finishes offer environmental compliance, making them a reliable choice for critical applications.