S-90131A649 1.312" ID x 3" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior sealing performance with SBR rubber construction that provides excellent chemical resistance and prevents fluid/gas leakage in industrial applications
• Enhanced durability and structural integrity through polyester fiber filler reinforcement that resists deformation under pressure
• Optimal hardness balance with Durometer 70A rating offering both flexibility for sealing and firmness for long-term performance
• High-temperature resilience maintaining functionality up to 170°F (76°C) for demanding industrial environments
• Precise dimensional compatibility with 1.312" ID and 3" OD designed specifically for 1 1/4" screw sizes in inch system applications
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use across global markets
• Reliable vibration dampening and noise reduction properties that extend equipment lifespan in mechanical assemblies

Professional Applications & Engineering Value

These SBR rubber flat washers deliver critical engineering solutions where standard metal washers fall short. The SBR rubber material with polyester fiber filler creates an ideal combination for applications requiring both chemical resistance and structural reinforcement. In industrial settings, they effectively solve common challenges like vibration-induced loosening, corrosion between dissimilar metals, and fluid sealing failures. The Durometer 70A hardness provides the perfect balance - firm enough to maintain seal integrity under compression yet flexible enough to conform to irregular surfaces. These black rubber washers are particularly valuable in plumbing systems, machinery mounts, electrical enclosures, and automotive assemblies where reliable sealing performance and environmental protection are paramount. Their inch system dimensions ensure seamless integration with standard 1 1/4" screw size fasteners in North American industrial applications.

Specification Summary & Compliance

This heavy-duty flat washer features precise inch system dimensions with 1.312" inner diameter, 3" outer diameter, and thickness ranging from 0.105" to 0.145". Manufactured from SBR rubber with polyester fiber filler and rated at Durometer 70A hardness, it withstands temperatures up to 170°F. The product maintains dimensional accuracy for reliable performance with 1 1/4" screw size fasteners. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.