MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. The connectors come in high-strength aluminum shells with options for different plating finishes, including cadmium-free choices. Offering front and rear wall mount, jam nut receptacles, and RFI grounding plugs, they meet military specifications for durability and performance. Suitable for aerospace, defense, and industrial use, these connectors provide secure and efficient electrical connections in challenging settings.