MIL-DTL-38999 Series I connectors offer reliable performance in harsh environments, featuring up to 128 contacts sealed for environmental protection. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes for RoHS compliance. With options for wall mount and jam nut receptacles, along with RFI grounding plugs, these connectors provide versatility in installation. Trusted for military use, they meet MIL-DTL-38999 I specifications, ensuring durability and performance in demanding conditions. Whether in aerospace, defense, or industrial settings, these connectors deliver reliable connectivity with gold-plated contacts, rated for 500 mating cycles. With features such as bayonet coupling and polarization keyway B, they offer ease of use and secure mating. Ideal for applications requiring conductive connectivity and ingress protection, these connectors are a dependable choice for critical systems.