MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an insert, meeting stringent military specifications for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, they ensure secure connections in demanding applications. With a wide operating temperature range from -65 °C to 200 °C, these connectors provide reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for efficient installation. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, these connectors guarantee long-lasting durability and conductivity. Suitable for environment-resistant box and through bulkhead mounting receptacle types, they are essential for mission-critical operations.