MIL-DTL-38999 Series I connectors are rugged and reliable, offering up to 128 contacts in an insert for versatile connectivity. Designed for harsh environments, they are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors come in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts in various sizes, they ensure secure connections. Constructed with high-strength aluminum shells, they are available in multiple plating options, including RoHS certified finishes. Perfect for military and industrial applications, these connectors provide reliable performance with 500 mating cycles.