MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. With a wide operating temperature range of -65°C to 200°C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come with various plating options, including cadmium-free finishes, meeting RoHS compliance. Perfect for military and industrial applications, these connectors provide durable and dependable electrical connectivity.