MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed within an insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors ensure durability and compliance with environmental standards. Suitable for military and industrial applications, they come in straight plug, wall mount, and jam nut receptacle configurations, providing flexibility for different installation needs. With features like bayonet coupling and environmental resistance, MIL-DTL-38999 Series I connectors guarantee high-quality connectivity for critical systems.