MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts housed in a sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are suitable for demanding applications. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. Utilizing M39029 rear release crimp contacts in different sizes, these connectors are versatile. Constructed with high-strength aluminum shells and offered in multiple plating options such as gold and electroless nickel, they provide durability and performance. Meeting military specification MIL-DTL-38999 I, these circular connectors are ideal for use in aerospace, defense, and other rugged environments.