MIL-DTL-38999 Series I connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating range of -65°C to 200°C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they offer reliable RFI grounding options. With 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for seamless connectivity. Crafted from high-strength aluminum, they come in plating options like cadmium and nickel, meeting RoHS standards. The MS27466 model specifically offers a 23-contact, wall-mounting flange receptacle with gold-plated contacts, ensuring longevity and conductivity in demanding applications.