WASHER INSULATOR SQUARE (Crown CR090873)

A damaged washer insulator can allow electrical current to leak or short against adjacent components. This aftermarket replacement part references the Crown catalog number CR090873. The square washer insulator serves as a non-conductive barrier between fasteners and metal surfaces. Its primary mechanical function is to prevent galvanic corrosion by isolating dissimilar metals. A common failure consequence is intermittent electrical grounding that disrupts circuit continuity. Keeping this insulator in sound condition helps maintain proper electrical isolation in the assembly. Verify the serial number or application, then call (562) 693-7748.

Part number variants: CR090873, cr090873