S-90131A327 1.5" ID x 2.5" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior sealing performance with SBR rubber construction that effectively blocks fluids and contaminants in industrial environments
• Enhanced durability and tear resistance thanks to polyester fiber filler reinforcement that extends service life under mechanical stress
• Optimal vibration damping and noise reduction with Durometer 70A hardness providing perfect balance between flexibility and load distribution
• Reliable high-temperature operation maintaining performance integrity up to 170°F in demanding thermal conditions
• Precise dimensional compatibility with 1.5" ID perfectly matching 1 1/2" screw sizes for secure fastening applications
• Environmental compliance assurance with RoHS 3 (2015/863/EU) certification for safe use across regulated industries
• Excellent chemical and weather resistance from black SBR rubber material suitable for both indoor and outdoor applications

Professional Applications & Engineering Value

This SBR rubber flat washer delivers critical engineering solutions where standard metal washers fall short. The Durometer 70A hardness provides ideal compression characteristics for effective vibration damping in machinery, automotive, and HVAC systems, preventing fastener loosening and component damage. The polyester fiber filler reinforcement significantly enhances structural integrity, resisting deformation under sustained pressure while maintaining the sealing performance needed for fluid containment applications. With a 1.5" ID precisely engineered for 1 1/2" screw sizes and 2.5" OD providing ample surface coverage, this black rubber washer creates reliable seals in plumbing, industrial equipment, and electrical enclosures where temperature fluctuations and environmental exposure challenge ordinary sealing solutions.

Specification Summary & Compliance

This heavy-duty flat washer features precise inch-dimension specifications with 1.5" inner diameter, 2.5" outer diameter, and thickness ranging 0.110-0.140" for consistent performance. Manufactured from SBR rubber with Durometer 70A hardness and polyester fiber filler reinforcement, it's engineered for mechanical fastening applications requiring 1 1/2" screw compatibility. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental standards for restricted substances, and rated for continuous service up to 170°F maximum temperature.