S-90131A305 0.25" ID x 1" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration dampening and shock absorption with SBR rubber construction and 70A Durometer hardness for reduced equipment wear and noise
• Excellent sealing and gasketing performance to prevent fluid leakage and protect against dust and debris ingress
• Enhanced durability and tear resistance due to polyester fiber filler, extending service life in demanding applications
• Reliable performance in high-temperature environments, withstanding temperatures up to 170°F without compromising integrity
• Precise fit for 1/4" screws with 0.25" ID and 1" OD, ensuring easy installation and secure fastening
• Safe for regulated industries with full RoHS 3 (2015/863/EU) compliance, meeting strict environmental standards
• Consistent thickness (0.110-0.140") provides uniform pressure distribution and reliable performance

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to solve critical industrial challenges, particularly in applications requiring vibration dampening, sealing, and electrical insulation. The Durometer 70A hardness offers an optimal balance of flexibility and firmness, effectively absorbing shocks in machinery, automotive assemblies, and HVAC systems to prevent fastener loosening. Reinforced with polyester fiber filler, it resists tearing under cyclic loads, making it ideal for heavy-duty use. Its black SBR rubber material provides excellent resistance to compression set and environmental factors, while the precise 1/4" screw size compatibility ensures leak-proof seals in plumbing and pneumatic systems. Operating reliably up to 170°F, this washer delivers long-term value by reducing maintenance costs and enhancing equipment reliability in demanding industrial applications.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an ID of 0.25", OD of 1", and thickness range of 0.110-0.140", designed specifically for 1/4" screw sizes. Manufactured from SBR rubber with polyester fiber filler and a hardness rating of Durometer 70A, it ensures consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant, adhering to environmental safety regulations for hazardous substance restrictions.