MIL-DTL-38999 Series I connectors are rugged and reliable, offering up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, they are suitable for harsh environments. Available in various shell sizes and insert arrangements, these connectors feature high strength aluminum shells with a choice of plating options, including cadmium-free finishes. The connector types include front wall mount, rear wall mount, and jam nut receptacles, with options for RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections, with contact sizes ranging from 22D to 8. Suitable for military and aerospace use, these connectors meet stringent standards for durability and performance.