MIL-DTL-38999 III (D38999) harsh environment connectors are rugged and reliable solutions for military and aerospace applications. This Series III connector, with a wall mount receptacle design, features 39 gold-plated removable crimp contacts for secure and efficient connectivity. Rated for extreme temperatures ranging from -65°C to 175°C, and boasting a zinc-nickel finish for enhanced durability, these connectors ensure optimal performance in demanding conditions. With a shell size of 17 and contact size of 8Twinax(1) and 22D(38), they offer versatility for various signal and power transmission needs. Meeting stringent military specifications and RoHS compliance, the D38999/20 connector guarantees high-quality and environmentally friendly operation, making it the ideal choice for mission-critical systems in aerospace, defense, and other hi-rel industries.