MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C and a variety of shell sizes and insert arrangements, these connectors offer versatility and reliability. Made of high-strength aluminum with options for different plating finishes, including RoHS-certified cadmium-free coatings, they ensure durability and performance. Available in front wall mount, rear wall mount, and jam nut receptacle styles, along with RFI grounding plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections. The MIL-DTL-38999 Series I connectors are ideal for applications requiring rugged construction and dependable performance in demanding environments.