The TE Connectivity 2350890-4 is a 20-position high-density sealed connector designed for a variety of industrial applications. This specification details the guidelines for application, mounting, and accessory usage. It includes procedures for assembling contacts into both plug and receptacle connectors, extracting contacts, and mating/unmating connectors. Proper adherence to these guidelines ensures reliable performance and longevity of the connector system. Accessories such as backshells, mounting clips, and blind blocks are also covered, providing a complete solution for connector integration.