S-90131A632 0.344" ID x 1.125" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with Durometer 70A hardness SBR rubber for reduced equipment wear and noise
• Excellent sealing performance to prevent fluid and dust ingress in industrial applications
• Enhanced durability from polyester fiber filler reinforcement, resisting deformation under load
• Precise dimensional fit with 0.344" ID specifically engineered for 5/16" screw sizes
• Broad temperature resistance maintaining performance up to 170°F in various operating environments
• Reliable compliance with RoHS 3 and REACH regulations for safe industrial usage
• Optimal load distribution through 1.125" OD design, protecting surfaces from damage

Professional Applications & Engineering Value

This SBR rubber flat washer delivers critical engineering solutions for industrial equipment requiring reliable sealing and vibration isolation. The Durometer 70A hardness provides optimal compression recovery while the polyester fiber filler enhances structural integrity under constant load. Ideal for 5/16" screw applications in machinery assembly, automotive components, and electrical enclosures, it effectively prevents loosening from vibration and creates water-tight seals. The black SBR rubber construction offers excellent resistance to compression set, making it perfect for repetitive bolting operations where consistent performance is essential. With its 1.125" OD and precise inner diameter, it ensures proper load distribution across fastened surfaces.

Specification Summary & Compliance

Manufactured to inch system standards with dimensions: 1.125" OD × 0.344" ID × 0.047-0.077" thickness range. The SBR rubber flat washer features Durometer 70A hardness and polyester fiber reinforcement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence. Rated for continuous service up to 170°F maximum temperature.