The MIL-DTL-38999 Series I connectors offer robust connectivity for harsh environments, with up to 128 contacts housed in a sealed insert. Designed for durability, they can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting options, including front and rear wall mounts, and jam nut receptacles, these connectors feature RFI grounding plugs for enhanced performance. Compliant with military specification MIL-DTL-38999 I, they come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Constructed with high-strength aluminum shells and multiple plating options, such as electroless nickel and cadmium-free finishes, these connectors ensure reliable conductivity. Suitable for a wide range of applications, they provide secure and efficient electrical connections in demanding conditions.