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, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in different sizes. The high-strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. Offering front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs, they provide versatility for different applications. Ideal for military and aerospace use, these connectors ensure secure and reliable electrical connections in demanding environments.