MIL-DTL-38999 Series I connectors feature up to 128 contacts enclosed in an environmentally sealed insert, designed for rugged applications with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer versatility in front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding options. Constructed with high-strength aluminum shells and offering multiple plating choices, including RoHS-certified finishes, they ensure reliable performance in harsh environments. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections, with their bayonet coupling and removable crimp contact design. Suitable for military and industrial applications, they meet MIL-DTL-38999 I specifications for durability and functionality.