S-90131A626 0.281" ID x 0.5" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with SBR rubber construction reduces equipment wear and noise in demanding industrial environments
• Excellent chemical resistance ensures long-term performance when exposed to oils, fluids, and industrial chemicals
• Enhanced structural integrity from polyester fiber filler prevents deformation under compression and extends service life
• Optimal sealing performance with 70A Durometer hardness provides perfect balance between flexibility and compression resistance
• Reliable high-temperature operation maintaining performance up to 170°F for automotive and industrial applications
• Precise dimensional fit with 0.281" ID and 0.5" OD ensures proper alignment and sealing for 1/4" fasteners
• Regulatory compliance assurance with RoHS 3 and REACH standards meets international environmental and safety requirements

Professional Applications & Engineering Value

Engineered for demanding industrial and automotive applications, these SBR rubber flat washers solve critical sealing and vibration challenges. The polyester fiber reinforced construction provides exceptional resistance to compression set, maintaining seal integrity under constant load. With 70A Durometer hardness, they deliver the ideal balance between conformability and structural support, creating reliable weather seals and vibration isolation in machinery, electrical enclosures, and automotive assemblies. The black SBR rubber material offers superior resistance to weathering, ozone, and moderate chemicals, while the precise inch dimensions ensure proper fitment with standard 1/4" fasteners in various industrial configurations.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.281" inner diameter, 0.5" outer diameter, and thickness ranging from 0.047" to 0.077" for consistent performance. Manufactured from SBR rubber with polyester fiber filler and rated at 70A Durometer hardness, it delivers reliable sealing for 1/4" screw applications. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial applications.