MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments with up to 128 contacts. These environmentally sealed connectors, operating between -65°C and 200°C, feature front and rear wall mount options, as well as jam nut receptacles, and RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, they come in various plating options, including cadmium-free finishes. Meeting military specifications for durability, these connectors are ideal for applications requiring secure and durable electrical connections.