MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an extensive operating temperature range of -65 °C to 200 °C. Available in multiple configurations including front and rear wall mount as well as jam nut receptacles, they offer reliable RFI grounding. With 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts, allowing for versatile connectivity. Crafted in high strength aluminum shells with various plating options such as gold, electroless nickel, and cadmium-free finishes, they ensure durability and performance in demanding applications. RoHS compliant, these connectors are ideal for military, aerospace, and industrial use.