The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for rugged applications. With a wide operating temperature range of -65°C to 200°C, they provide reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, these connectors offer versatility for different connectivity needs. The high-strength aluminum shells come with options for plating, including cadmium-free finishes. Meeting military specifications, they ensure durability and longevity with a service rating of I. Suitable for wall mount and jam nut receptacles, these connectors are ideal for demanding environments that require secure and efficient electrical connections.