The MIL-DTL-38999 III (D38999) harsh environment connectors offer rugged reliability for demanding applications. Available in various shell sizes and insert arrangements, they feature M39029 contacts in multiple sizes, including power and twinax options. With a choice of shell materials like aluminum, stainless steel, and lightweight composite, and plating options such as olive drab cadmium and nickel, these connectors provide versatility. RoHS-compliant and Boeing BACC-approved designs cater to different environmental requirements. Ideal for military and aerospace use, they ensure secure connectivity in extreme conditions.