MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating range of -65 °C to 200 °C. Available in front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding plugs and come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections with sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). Crafted with high strength aluminum shells, they provide durability and reliability. Various plating options, including cadmium-free finishes, cater to diverse application needs. Compliant with MIL-DTL-38999 I specifications, these connectors, with gold-plated contacts, guarantee optimal performance in demanding environments.