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 wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Crafted from high-strength aluminum, they offer multiple plating options including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable performance, with gold plating for enhanced conductivity. Meeting military specification MIL-DTL-38999 I, these connectors are ideal for demanding applications, with a service rating of M and a mating life of 500 cycles. Environmentally sealed and RoHS compliant, they provide durable and secure electrical connections in critical environments.