MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating finishes including cadmium-free choices. They include front and rear wall mount, as well as jam nut receptacles, and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity for applications requiring durability and environmental resistance. A staple in military and industrial settings, these connectors meet stringent MIL-DTL-38999 I specifications, offering secure and efficient electrical connections in demanding conditions.