4S-6517: 20.98mm Outer Diameter Cup Plug

A Cup Plug is used to seal a hole or opening in a cylindrical object. The stem is inserted into the hole or opening and then tightened, causing the cup-shaped body to expand and create a tight seal against the inner walls of the object. Attributes: • Provides a tight seal, even in high-pressure environments • Expands and contracts to fit snugly into a hole Applications: A Cup Plug is a cost-effective solution for sealing holes in mechanical components prevents fluid from leaking out or entering the parts where it is not intended to go on the Machine Frame