MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Constructed with high-strength aluminum shells and offering options for RoHS compliant finishes, these connectors ensure reliable performance. With front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they cater to diverse connectivity needs in military and industrial settings. Incorporating M39029 rear release crimp contacts and gold contact plating, they guarantee secure and durable connections. The bayonet coupling mechanism and A keyway polarization provide ease of use and alignment. Suitable for both box and through bulkhead mounting, these connectors meet stringent MIL-DTL-38999 I specifications for conductivity, ingress protection, and mating life, making them ideal for mission-critical operations.