206504-2 is an electrical connector plug assembly designed for reliable mating with receptacle connectors conforming to MS18277-2 specifications. The connector features a brass shell with gold plating per MIL-G-45204 and a diallyl phthalate or polyphenylene sulfide insert assembly in blue or black color. Key dimensional specifications include a raised cavity with outer dimensions of 2.084 × 0.620 inches and a pin diameter extension of 0.155 inches minimum. The connector accommodates maximum wire insulation of 0.054 inches diameter and includes Be-Cu retention clips for secure contact retention. This connector is suitable for aerospace and military applications requiring robust interconnection solutions with precise dimensional tolerances and reliable electrical performance.