S-90131A653 1.625" ID x 3.5" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: SBR rubber construction with polyester fiber filler provides excellent compression recovery and leak-proof sealing in demanding environments.
• Optimal Durability & Flexibility: Durometer 70A hardness offers the perfect balance between firmness and flexibility, resisting deformation under load.
• High-Temperature Resistance: Withstands continuous exposure up to 170°F, making it suitable for various industrial and mechanical applications.
• Precise Fit & Compatibility: Designed with 1.625" ID and 3.5" OD to fit 1 1/2" screws accurately, ensuring secure fastening and vibration dampening.
• Enhanced Load Distribution: Flat washer design evenly distributes pressure, protecting surfaces and extending component life.
• Regulatory Compliance Assurance: Certified RoHS 3 and REACH compliant, meeting strict environmental and safety standards for global supply chains.
• Reliable Material Integrity: Black SBR rubber with fiber reinforcement resists oils, abrasion, and weathering, ensuring long-term performance.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to address common industrial challenges such as vibration loosening, fluid leakage, and surface damage. The polyester fiber filler enhances dimensional stability and tear resistance, making it ideal for heavy-duty sealing applications in machinery, automotive assemblies, and plumbing systems. Its Durometer 70A hardness provides sufficient compression set resistance while maintaining a tight seal under fluctuating pressures. The inch system dimensions (1.625" ID x 3.5" OD) ensure compatibility with standard 1 1/2" screw sizes, offering reliable performance in equipment requiring noise reduction, insulation, or corrosion prevention. By combining material resilience with precise engineering, this washer reduces maintenance downtime and improves operational safety in industrial washers and gasket setups.

Specification Summary & Compliance

This flat washer features an inner diameter of 1.625", outer diameter of 3.5", and thickness range of 0.156-0.218", designed for use with 1 1/2" screws in inch-based systems. Manufactured from SBR rubber with a Durometer 70A hardness and polyester fiber filler, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and health standards. The product is suitable for applications with a maximum temperature of 170°F, providing consistent performance in various mechanical and sealing roles.