The 058-8578-100 is a straight endbell accessory for ITT Cannon's APD series connectors. It is specifically designed to accommodate a flex tube with an 8.5 mm diameter, providing a secure and straight cable exit. This component is listed as an accessory for the 4-way and 6/7-way APD connectors. It is used to protect cable terminations and provide strain relief in harsh environment applications such as transportation, off-road vehicles, and industrial equipment.