Which of the following is NOT a component of the chain stopper?

The correct answer is the detachable link, as it is not a component specifically associated with the chain stopper. A chain stopper is a device used primarily to secure the anchor chain to prevent it from running out uncontrollably when the anchor is not in use.

The hairpin, C-plate, and taper pin are all components that play vital roles in the functionality of a chain stopper. The hairpin typically secures the chain in place, while the C-plate serves as a locking mechanism that provides stability to the assembly. The taper pin ensures that parts of the stopper remain aligned and connected properly during operation. Understanding the specific components of the chain stopper is crucial for maintenance and operation in surface warfare, thereby highlighting why the detachable link does not fit within this particular assembly.