MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within an insert for high-density connectivity. With an operating temperature range from -65°C to 200°C and environmental sealing, they ensure reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, including front and rear wall mount and jam nut receptacles, these connectors offer versatility in installation. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. Constructed with high-strength aluminum shells and offered in different plating options, such as cadmium and nickel, they provide durability and corrosion resistance. Meeting MIL-DTL-38999 I military specifications, these connectors are essential for demanding applications requiring robust electrical connectivity.