MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Built to withstand extreme conditions, they operate reliably in temperatures ranging from -65 °C to 200 °C. Featuring front and rear wall mount options, as well as jam nut receptacles, these connectors ensure secure installations. Compliant with military specification MIL-DTL-38999 I, they come in 9 shell sizes and 52 insert arrangements, accommodating various contact configurations. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax variants, they guarantee efficient signal transmission. Crafted from high-strength aluminum, with plating options such as electroless nickel for durability, these connectors provide robust performance in demanding environments. Suitable for applications requiring RoHS compliance, they are ideal for use in aerospace, defense, and industrial settings.