The 1670057-1 is a backshell accessory designed for HDSCS group C connectors, providing cable strain relief and environmental sealing. It features a 90° orientation angle and is compatible with NW 13 mm tubing, making it suitable for applications requiring angled cable entry. This backshell integrates with HDSCS group C connector housings to maintain IP67 environmental sealing ratings and protect against moisture, vibration, and mechanical stress. It is commonly used in industrial and commercial transportation applications where sealed, angled cable connections are required for reliability and durability in harsh operating environments.