MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Offering front and rear wall mount as well as jam nut receptacles, these connectors ensure secure RFI grounding. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts, including sizes 22D, 22M, 22, 20, 16, and 8 for coax and twinax applications. Constructed with high strength aluminum shells, they come in various plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS certified cadmium-free finishes. Ideal for military and industrial use, these connectors, meeting MIL-DTL-38999 I specifications, guarantee reliable performance in demanding conditions.