MIL-DTL-38999 Series I connectors feature up to 128 contacts with environmental sealing, suitable for harsh environments. Operating between -65 °C and 200 °C, these connectors come in various configurations including front and rear wall mount, as well as jam nut receptacles. Compliant with military specifications, they offer reliable performance with M39029 rear release crimp contacts. Available in 9 shell sizes and 52 insert arrangements, they cater to diverse connectivity needs. Constructed with high-strength aluminum shells and offering plating options such as cadmium and nickel, these connectors ensure durability. With RoHS compliant finishes, they meet environmental standards, making them ideal for a range of applications requiring secure and efficient electrical connections.