S-9311K118 0.46" ID x 1" OD Ribbed Vibration-Damping Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with ribbed plastic/rubber blend construction for reduced equipment wear and noise
• Excellent load distribution supporting 25 lbs capacity per mount to prevent surface damage and fastener loosening
• Secure press-fit installation that maintains position without additional fasteners for simplified assembly
• Temperature resilience from -20° to 160° F for reliable performance in varied industrial environments
• Optimized deflection resistance with minimal deformation (0.05" @ capacity) ensuring long-term sealing effectiveness
• Medium hardness rating (Durometer 57A) providing ideal balance between cushioning and structural support
• Industry compliance assurance with RoHS 3 and REACH standards for safe use in regulated applications

Professional Applications & Engineering Value

This ribbed plastic/rubber washer delivers critical engineering solutions for vibration management and load distribution challenges. The unique ribbed texture combined with the plastic/rubber blend material creates multiple contact points that effectively absorb mechanical vibrations, protecting sensitive components from fatigue failure. The press-fit mount type ensures secure positioning without requiring additional fastening methods, streamlining assembly processes in industrial applications. With a temperature range of -20° to 160° F, this vibration dampening washer maintains performance integrity in both cold storage environments and heated machinery applications. The medium hardness rating (Durometer 57A) provides the perfect compromise between cushioning softness and structural integrity, making it ideal for 7/16" screw applications where both vibration isolation and load bearing capacity are essential.

Specification Summary & Compliance

This washer features precise dimensional specifications with 0.46" ID, 1" OD, and 0.52" thickness, engineered for compatibility with 7/16" screws. The product demonstrates excellent performance characteristics with 25 lbs capacity per mount and 1.3 lbs shear capacity, while maintaining minimal deflection under load. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications worldwide.