MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating range of -65 °C to 200 °C. Available in various configurations including front and rear wall mount, jam nut receptacles, and RFI grounding plugs, they offer versatility in applications. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for reliable performance. Constructed with high strength aluminum shells and offering multiple plating options, they ensure durability and functionality. RoHS certified finishes are available, meeting environmental standards. Perfect for military and industrial use, these connectors provide secure and efficient electrical connections in demanding conditions.