The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments. With up to 128 contacts sealed within their inserts, they ensure reliable performance in extreme conditions, ranging from -65°C to 200°C. Featuring various mounting options such as front wall, rear wall, and jam nut receptacles, these connectors are versatile for different applications. Compliant with military specifications, they guarantee durability and quality. Available in 9 shell sizes and 52 insert arrangements, with M39029 rear release crimp contacts, they provide flexibility in design. Constructed with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, these connectors prioritize both performance and environmental considerations. Ideal for aerospace, defense, and industrial sectors, they meet the stringent requirements of demanding operating environments.