MIL-DTL-38999 Series I connectors are built for rugged environments, boasting up to 128 contacts within an insert for secure connectivity. With a wide operating temperature range from -65 °C to 200 °C, these connectors ensure reliability in extreme conditions. Featuring various mounting options such as front wall, rear wall, and jam nut receptacles, they offer versatility in installation. The connectors comply with military specifications and come in 9 shell sizes and 52 insert arrangements, accommodating different needs. Utilizing M39029 rear release crimp contacts, they ensure efficient signal transmission. Constructed with high-strength aluminum shells and available in multiple plating options including cadmium-free finishes, they guarantee durability and corrosion resistance. Suitable for applications requiring environmental sealing, these connectors are ideal for demanding military and industrial environments.