MIL-DTL-38999 Series I connectors are rugged, environmentally sealed solutions designed to withstand harsh conditions. With up to 128 contacts in each insert, they offer reliable connectivity in demanding environments. Operating temperatures ranging from -65 °C to 200 °C make them suitable for a wide range of applications. Available in various shell sizes and insert arrangements, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections, while their high-strength aluminum shells provide durability. Plating options include light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS-certified cadmium-free finishes available. Suitable for military and industrial use, MIL-DTL-38999 I connectors offer reliable performance in challenging operating environments.