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, along with RFI grounding plugs. Crafted from high-strength aluminum, these connectors come with a range of plating options, including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity with gold-plated sockets. Meeting military specification MIL-DTL-38999 I, these circular connectors are suited for demanding applications requiring environmental resistance and durability.