The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. Available in various configurations such as front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, they cater to diverse connectivity needs. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, ensuring secure and reliable connections. Constructed with high strength aluminum shells and offering plating options like gold, electroless nickel, and anodized aluminum, they provide durability and performance in harsh environments. RoHS compliant finishes are also available. Suitable for military and industrial applications, these connectors are designed for the utmost reliability in demanding conditions.