MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environment applications. With an operating temperature range of -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, ensuring versatility in installation. Utilizing M39029 rear release crimp contacts, they provide secure connections in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. Meeting MIL-DTL-38999 I military specifications, these connectors are ideal for applications requiring rugged and durable electrical connectivity.