MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing and a wide operating temperature range from -65°C to 200°C. These harsh environment connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts and are crafted from aluminum with a choice of plating options. With RoHS certified finishes, these connectors ensure reliable performance in demanding applications.