MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in demanding conditions. Available in various shell sizes and insert arrangements, these connectors offer flexibility for different applications. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, they provide durability and corrosion resistance. The connectors come in different mounting styles, such as front wall mount, rear wall mount, and jam nut receptacles, with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. Ideal for military and industrial use, the MIL-DTL-38999 Series I connectors are a reliable choice for critical electrical applications.