The 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, they offer front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors ensure reliable performance in demanding applications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections with a mating life of 500 cycles. Suitable for military and industrial use, these connectors are ideal for applications requiring environmental resistance and durability.