MIL-DTL-38999 Series I connectors are designed for rugged environments, offering up to 128 contacts in a single insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh conditions. Available in various mounting options such as front wall, rear wall, and jam nut receptacles, they feature RFI grounding plugs for enhanced performance. Compliant with military specification MIL-DTL-38999 I, these circular connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, they are offered in different plating options including cadmium and electroless nickel. Perfect for applications requiring durability and reliability, these connectors ensure secure connectivity in demanding environments.