MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they offer versatility in design. The connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. They meet military specifications for reliability and performance, making them suitable for aerospace, defense, and industrial use. With bayonet coupling and jam nut mounting options, these connectors ensure secure and efficient connectivity in harsh conditions.