O-ring

An O-ring is a loop of elastomer with a round (o-shaped) cross-section used as a mechanical seal. They are designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

Other seals

Similar devices with a non-round cross-section are called seals or gaskets. See also washer (mechanical).

Related Topics:
Gasket - Washer (mechanical)

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