What does a stamped C on a gauge signify?

A stamped "C" on a gauge signifies excessive wear and stretch. This marking indicates that the component has surpassed acceptable wear limits and may not be safe for continued use. It serves as a clear warning to operators and maintenance personnel to assess the situation carefully and potentially replace the gauge before further operation. Recognizing such a marking is crucial for safety, as using equipment that shows signs of excessive wear can lead to malfunctions or failures, posing risks to personnel and operational integrity.

Understanding this type of marking on gauges helps ensure that equipment operates reliably, which is essential for maintaining safety standards and preventing accidents in millwright rigging and lifting operations.