MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, providing reliable connectivity in harsh environments. With an operating temperature range of -65 °C to 200 °C, these environmentally sealed connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they offer versatility for different mounting requirements. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS certified finishes, they ensure durability and performance. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, catering to diverse installation needs. Utilizing M39029 rear release crimp contacts in various sizes, they guarantee secure connections. Suitable for military and industrial use, these connectors, with their bayonet coupling and box mounting flange, provide a reliable solution for electrical connectivity.