S-9311K145 0.46" ID x 0.81" OD Ribbed Vibration-Damping Washers

Key Features & Benefits at a Glance

• Superior vibration damping with ribbed texture design for enhanced grip and stability in dynamic applications
• Secure press-fit mounting ensures reliable installation without additional fasteners, reducing assembly time
• Medium hardness (Durometer 56A) provides optimal balance between flexibility and load-bearing capacity
• Temperature resistance from 55° to 105° F maintains performance in various environmental conditions
• 10 lb load capacity with controlled deflection (0.05") ensures structural integrity under pressure
• Environmental compliance with RoHS 3 and REACH standards for safe use in regulated industries
• Electrical insulation properties of PVC material prevent current leakage in electrical assemblies

Professional Applications & Engineering Value

This ribbed PVC plastic washer addresses critical engineering challenges in industrial assembly where vibration damping and electrical insulation are paramount. The unique ribbed texture creates micro-friction points that significantly reduce component slippage in high-vibration environments, while the press-fit mounting design eliminates the need for secondary retention methods. Manufactured from medium-hardness PVC (Durometer 56A), this washer maintains its structural integrity under loads up to 10 pounds while providing sufficient flexibility to accommodate thermal expansion. The temperature-resistant properties make it ideal for electrical enclosures, machinery guards, and automotive components where both insulation and mechanical stability are required. Its blue color provides visual identification in complex assemblies, streamlining maintenance and quality control processes.

Specification Summary & Compliance

Precision-engineered with 0.46" ID for 7/16" screw compatibility and 0.81" OD with 0.25" thickness for optimal load distribution. The washer delivers consistent performance with 0.05" deflection at capacity and 0.04" deflection at shear capacity (0.5 lbs). Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across various industrial applications including electrical, automotive, and general manufacturing sectors.