MIL-DTL-83513 (commonly referred to as 83513) is a high-density micro rectangular connector compliant with U.S. military specifications, widely used in fields with stringent requirements for size, weight and reliability.

Its core features include a small pitch  and high reliability, and it is exclusively designed for harsh environments. Adopting a unique gold-plated pin-and-socket contact technology, it can withstand intense vibration. It is mainly applied in aerospace, national defense armaments, high-end industrial and medical equipment fields where stringent requirements for size and weight are imposed.