MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, with up to 128 contacts sealed within an insert. Designed for military specifications, these connectors feature various mounting options including front wall, rear wall, and jam nut receptacles, along with RFI grounding plugs. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connectivity. Constructed with high-strength aluminum shells, they come in a range of plating options such as electroless nickel and cadmium finishes. With a wide operating temperature range of -65°C to 200°C, these connectors are ideal for demanding applications requiring durability and performance.