S-90131A627 0.281" ID x 0.625" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with SBR rubber construction and 70A durometer hardness for reduced equipment wear and noise
• Enhanced durability and compression resistance through polyester fiber reinforcement that maintains shape under load
• Reliable sealing performance with precise 0.281" ID and 0.625" OD dimensions ensuring proper fit for 1/4" fasteners
• Consistent thickness control (0.047-0.077") provides uniform pressure distribution across mating surfaces
• Temperature resilience maintaining performance up to 170°F in demanding industrial environments
• Regulatory compliance assurance with RoHS 3 and REACH compliance for global supply chain integration
• Corrosion-resistant black rubber formulation for long service life in harsh operating conditions

Professional Applications & Engineering Value

Engineered for industrial applications requiring reliable sealing and vibration isolation, this SBR rubber flat washer solves critical engineering challenges in machinery assembly, automotive systems, and electrical enclosures. The Durometer 70A hardness provides optimal flexibility while maintaining structural integrity under compression cycles. With polyester fiber filler reinforcement, the washer resists deformation and maintains consistent sealing pressure, preventing fluid ingress and fastener loosening in vibrating environments. The precise 0.281" ID and 0.625" OD dimensions ensure perfect alignment with 1/4" screw sizes, while the black SBR rubber material offers excellent resistance to weathering, oils, and industrial chemicals. Ideal for electrical insulation, mechanical spacing, and gasketing applications where temperature fluctuations and environmental factors compromise ordinary washers.

Specification Summary & Compliance

This flat washer meets precise dimensional requirements with 0.281" inner diameter, 0.625" outer diameter, and 0.047-0.077" thickness range for consistent performance. Manufactured from SBR rubber with polyester fiber filler and rated for 170°F maximum operating temperature. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global industrial markets. Designed specifically for 1/4" screw sizes in inch measurement system applications.