A Backup Ring is a type of sealing component that is used in conjunction with an O-ring to prevent extrusion under high pressure and temperature conditions. It is typically made of a harder material than the O-ring, such as plastic, and is placed on the opposite side of the O-ring from the pressure source.

Attributes:
• Manufactured to precise specifications and are built for durability, and reliability
• Provides good resistance to wear and tear

Applications:
A Backup Ring is used to provide a tight connection between the components.