MIL-DTL-38999 III (D38999) harsh environment connectors offer rugged reliability in demanding applications. Available in various shell sizes and insert arrangements, they feature M39029 contacts in different sizes for flexibility. With options in shell materials like aluminum, stainless steel, and lightweight composite, and plating choices including olive drab cadmium and passivated stainless steel, these connectors meet diverse needs. RoHS-compliant and Boeing BACC-approved variants are also available. Designed for durability, they provide secure, high-performance connectivity in challenging environments.