MIL-DTL-38999 Series I connectors offer rugged reliability for demanding environments. Featuring up to 128 contacts in an insert, these connectors are designed for secure connectivity in extreme conditions. With an operating temperature range of -65 °C to 200 °C, they ensure consistent performance in hot or cold settings. Available in various shell sizes and insert arrangements, including rear release crimp contacts, they provide flexibility for different applications. The high strength aluminum shells, along with plating options like gold and electroless nickel, guarantee durability and corrosion resistance. Meeting military specification MIL-DTL-38999 I, these circular connectors are ideal for aerospace, defense, and industrial use.