MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. Designed for harsh environments, they offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in applications requiring reliability and durability. Suitable for military and industrial use, these connectors meet stringent standards for performance and protection.