The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for rugged performance in harsh environments with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, these connectors offer versatility in applications. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, the connectors ensure reliable connections, with contact plating options including gold for enhanced conductivity. Constructed with high-strength aluminum shells, they come in RoHS compliant finishes, offering durability and compliance with environmental standards. Suitable for military and industrial use, the MIL-DTL-38999 Series I connectors are ideal for demanding applications requiring secure and efficient electrical connections.