MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, this connector family includes 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts in various sizes, they ensure secure connections. Constructed with high-strength aluminum shells and available in different plating options, such as cadmium-free finishes, these connectors guarantee reliability and durability. Suitable for military and industrial applications, they meet stringent MIL-DTL-38999 I specifications.