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 utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. The connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, ensuring versatility in connectivity solutions. Suitable for military and industrial applications, these connectors meet MIL-DTL-38999 I specifications, guaranteeing performance and durability.