MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front and rear wall mount, jam nut receptacles, and RFI grounding plugs. These connectors utilize M39029 rear release crimp contacts, with options for contact plating in gold. Constructed with high-strength aluminum shells, they come in RoHS compliant finishes such as electroless nickel. Engineered for reliability, they are ideal for military and aerospace applications, ensuring durability and performance in demanding conditions.