The MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a rugged insert design. Engineered for harsh environments, they feature front and rear wall mount options, jam nut receptacles, and RFI grounding plugs. With a wide operating temperature range from -65°C to 200°C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, they ensure reliable performance in diverse settings. Meeting stringent military specifications, these connectors are ideal for aerospace, defense, and industrial applications requiring durable and environmentally sealed connectivity.