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. Available in various shell sizes and insert arrangements, these connectors come in front and rear wall mount, as well as jam nut receptacles with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they offer reliable connectivity with options for plating finishes like cadmium and nickel. With a high-strength aluminum shell construction, they ensure durability and performance in demanding applications. RoHS compliant variants are also available for environmentally conscious practices. Suitable for military and industrial use, these connectors provide secure and efficient electrical connections in critical operations.