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 extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with a range of plating options including cadmium-free finishes. Suitable for military and aerospace applications, they meet stringent MIL-DTL-38999 I specifications for durability and performance. With front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide versatile connectivity solutions. The use of M39029 rear release crimp contacts ensures secure and efficient connections. RoHS compliant options are also available.