The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. 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 utilize M39029 rear release crimp contacts for reliable connections. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors offer versatility in installation. Constructed with high-strength aluminum shells and offering plating options such as cadmium and nickel, they ensure durability and performance. Suitable for military and industrial applications, the MIL-DTL-38999 Series I connectors meet stringent standards for reliability and ruggedness.