MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts, featuring a durable insert design for harsh environments. These circular connectors, compliant with military specification MIL-DTL-38999 I, are meticulously engineered for reliability in extreme conditions, with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. The connectors come in rugged aluminum shells, with options for plating including cadmium and nickel finishes. Suitable for wall mounting applications, they provide efficient signal transmission with gold-plated contacts, ensuring conductivity and longevity. Meeting stringent military standards, these connectors are ideal for aerospace, defense, and industrial applications requiring robust and reliable interconnect solutions.