High-reliability circular connectors for aviation feature military-grade characteristics such as wide-temperature resistance, high resistance to shock and vibration, high shielding against electromagnetic interference, and waterproof and moisture-proof sealing. They are widely used in fighter jets, naval vessels, armored vehicles, missiles, radar systems, and individual soldier equipment. They support high-power power supply, precision sensor signals, and high-speed data transmission links, and are capable of withstanding extreme temperatures, salt fog, severe shocks, and complex electromagnetic battlefield environments, ensuring the stable and reliable operation of communication and control systems for various weapons and equipment under harsh combat conditions.