MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, operating reliably in temperatures ranging from -65°C to 200°C. With options for front wall mount, rear wall mount, and jam nut receptacles, this connector family offers versatility in harsh environments. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells, these connectors come with various plating options, including cadmium-free finishes for RoHS compliance. Trusted for military applications, these connectors ensure reliable performance with gold-plated contacts, meeting stringent standards for conductivity and environmental protection.