MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. These connectors come in high strength aluminum shells with options for plating including cadmium and nickel, ensuring durability. The connectors, compliant with military specification MIL-DTL-38999 I, are suitable for wall mounting with bayonet coupling. Utilizing M39029 rear release crimp contacts, they guarantee secure and reliable connections, ideal for aerospace, defense, and other rugged environments.