MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliability in demanding conditions. Available in various mounting options such as front wall, rear wall, and jam nut receptacles, they ensure secure connections. Utilizing M39029 rear release crimp contacts, these connectors come in 9 shell sizes and 52 insert arrangements. Constructed with high-strength aluminum shells, they offer durability and are available in different plating options, including cadmium-free finishes for RoHS compliance. Perfect for military and industrial applications, these connectors provide efficient electrical connectivity with gold-plated contacts, ensuring conductivity and longevity.