MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with a wide operating temperature range of -65°C to 200°C. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, they provide reliable RFI grounding. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure connections in military and aerospace applications. Constructed with high strength aluminum shells and offered in different plating options such as cadmium and nickel, they meet stringent environmental standards. The RoHS compliant versions are also available, making them suitable for diverse industrial needs.