The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are front wall mount, rear wall mount, and jam nut receptacles, providing RFI grounding plugs. With a wide operating temperature range from -65 °C to 200 °C, they are suitable for various applications. The connectors come in 9 shell sizes and 52 insert arrangements, with M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, they offer durability and reliability. Available in different plating options, including cadmium-free finishes, they meet RoHS compliance standards. These connectors are ideal for military and industrial use, guaranteeing efficient and secure electrical connections in demanding conditions.