MIL-DTL-38999 Series I connectors offer a durable solution for harsh environments, featuring up to 128 contacts in an insert. These environmentally sealed connectors have a wide operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. With options for front and rear wall mount, jam nut receptacles, and RFI grounding plugs, these connectors meet stringent military specifications. Constructed with high-strength aluminum shells and offering multiple plating choices, including RoHS compliant finishes, they ensure reliable performance in demanding applications.