The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for a variety of applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. The connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free options. Featuring bayonet coupling and jam nut mounting, they ensure secure connections. Built to MIL-DTL-38999 I military specification standards, these circular receptacles guarantee reliability in demanding conditions.