MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for reliable performance. With an operating temperature range of -65 °C to 200 °C, they offer durability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. The connectors come in high-strength aluminum shells with plating options including cadmium-free finishes. Offering front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, they ensure versatility in installation. Suitable for military and industrial applications, these connectors meet stringent MIL-DTL-38999 I specifications, providing a rugged solution for critical connectivity needs.