MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in an insert and full environmental sealing. 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 use M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come with different plating options, including cadmium-free finishes, ensuring durability and reliability. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, these connectors meet stringent military specifications for performance and quality. Perfect for box mounting applications, they provide a secure and conductive connection in challenging environments.