MIL-DTL-38999 Series I connectors are designed for demanding environments, featuring up to 128 contacts housed in a sealed insert. Operating between -65 °C and 200 °C, they offer reliability 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 connectors, meeting military specification MIL-DTL-38999 I, come in plug variations with bayonet coupling for secure connections. With gold-plated removable crimp contacts, they ensure optimal conductivity and a mating life of 500 cycles. Suitable for potted applications, these connectors are a reliable choice for aerospace, defense, and industrial sectors.