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 reliability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come in different plating options, including cadmium-free finishes. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, these connectors ensure secure connections. Ideal for military and industrial applications, they provide durable performance with RoHS compliance.