MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert, designed for extreme conditions. Operating between -65 °C and 200 °C, these connectors are reliable in harsh environments. Featuring various mounting options like front wall, rear wall, and jam nut receptacles, they cater to diverse applications. With 52 insert arrangements and M39029 rear release crimp contacts, users can customize their configurations. Constructed with high-strength aluminum shells and available in different plating options, including RoHS compliant finishes, these connectors ensure durability and performance. Ideal for military and aerospace use, the MIL-DTL-38999 I series guarantees secure and efficient electrical connections.