MIL-DTL-38999 Series I connectors feature up to 128 contacts within 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, along with RFI grounding plugs. Constructed with high-strength aluminum shells, these connectors come with a selection of plating options, including cadmium-free finishes. Incorporating M39029 rear release crimp contacts, they ensure reliable connectivity with gold plating for enhanced performance. Meeting military specification MIL-DTL-38999 I, these circular connectors are ideal for applications requiring durability and environmental resilience.