S-90131A622 1.438" ID x 2.5" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior sealing performance with SBR rubber construction that effectively prevents fluid and gas leakage in industrial applications
• Excellent vibration dampening properties that protect equipment and extend component lifespan by absorbing mechanical shocks
• Enhanced durability and tear resistance through polyester fiber reinforcement that maintains structural integrity under pressure
• Optimal hardness balance with Durometer 70A rating providing both flexibility for sealing and firmness for load distribution
• Reliable high-temperature performance maintaining functionality up to 170°F for demanding industrial environments
• Precise dimensional compatibility with 1.438" ID perfectly fitting 1 3/8" screws and 2.5" OD for adequate surface coverage
• Full regulatory compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

This SBR rubber flat washer delivers critical engineering solutions for industrial applications where vibration resistance and fluid sealing are paramount. The Durometer 70A hardness provides the ideal balance between compression set resistance and sealing capability, while the polyester fiber reinforcement prevents deformation under sustained loads. Engineered for 1 3/8" screw sizes with precise 1.438" ID and 2.5" OD dimensions, this washer creates reliable seals in plumbing systems, machinery mounts, automotive assemblies, and electrical enclosures. The black SBR rubber material offers excellent weather resistance and maintains performance across temperature fluctuations, making it ideal for outdoor equipment and industrial machinery subjected to environmental exposure.

Specification Summary & Compliance

This heavy-duty flat washer features precise inch system dimensions with 1.438" inner diameter, 2.5" 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 maintains performance up to 170°F maximum temperature. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.