MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating including cadmium-free finishes. The connectors, compliant with MIL-DTL-38999 I military specifications, include wall mount receptacles with bayonet coupling and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections for applications requiring durability and environmental resilience.