MIL-DTL-38999 Series I connectors offer rugged durability with up to 128 contacts sealed for environmental protection. Designed for harsh environments, these connectors feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, they are suitable for demanding applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connectivity. Constructed with high strength aluminum shells, they come with various plating options, including cadmium and nickel. RoHS certified finishes are also available. Perfect for military and industrial use, these connectors ensure secure and durable electrical connections even in the harshest conditions.