S-90131A651 1.375" ID x 3" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing & Vibration Dampening – SBR rubber construction with polyester fiber filler provides excellent compression recovery and absorbs shock in demanding applications.
• Precise Fit for 1 1/4" Screws – 1.375" inner diameter ensures a secure fit, preventing misalignment and simplifying installation.
• Enhanced Load Distribution – Large 3" outer diameter spreads pressure evenly, protecting surfaces and extending component life.
• Consistent 70A Hardness – Durometer 70A rubber offers an optimal balance of flexibility and firmness for reliable performance under load.
• High-Temperature Resistance – Withstands continuous exposure up to 170°F, maintaining integrity in various industrial environments.
• Durable & Long-Lasting – Black SBR rubber material resists wear, oil, and weathering, ensuring a long service life.
• Global Compliance Assurance – RoHS 3 and REACH compliant, meeting stringent international regulations for safe use.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to solve critical challenges in industrial assembly and mechanical fastening. The combination of SBR rubber and polyester fiber filler creates a robust, resilient seal that effectively prevents fluid leakage and dampens vibrations in machinery, reducing noise and component fatigue. Its specific design for 1 1/4" screw size applications ensures a precise fit, eliminating gaps and enhancing the stability of connections in heavy-duty equipment, automotive systems, and construction frameworks. The black color and material composition offer resistance to environmental factors, making it ideal for outdoor or high-moisture settings where corrosion protection and reliable performance are paramount.

Specification Summary & Compliance

This washer features an inner diameter of 1.375", outer diameter of 3", and thickness range of 0.105-0.145", adhering to inch system measurements for broad compatibility. It is manufactured from SBR rubber with Durometer 70A hardness and includes polyester fiber filler for added strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for industrial use.