1658539-1 is a D-subminiature cable connector from the TE Connectivity AMPLIMITE HDP-20 series, designed for crimp snap-in contact applications. The connector features a steel tin-plated shell and a 94V-0 rated thermoplastic black insert, providing reliable shielding and flame retardancy. The standard clinch nut mounting method ensures secure installation in various configurations. These connectors are intermateable with size 20 D-subminiature connectors complying with MIL-C-24308 standards. Common applications include industrial machinery, medical instrumentation, computers and peripherals, file servers, and data storage systems.