The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, they offer reliable performance in challenging conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with multiple plating options, including RoHS-certified finishes. The connector family includes front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Suitable for military and industrial applications, these connectors are ideal for demanding environments requiring durability and performance.