S-90131A552 0.375" ID x 2.25" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior sealing performance with SBR rubber construction that prevents fluid and gas leakage in industrial applications
• Exceptional vibration dampening properties that protect equipment from mechanical stress and extend component lifespan
• Reinforced durability through polyester fiber filler that resists deformation under heavy loads
• Consistent compression performance with Durometer 70A hardness rating for reliable sealing under varying pressures
• Thermal stability maintaining functionality in temperatures up to 170°F for demanding operating environments
• Precise dimensional fit with 3/8" ID and 2.25" OD ensuring proper installation on standard inch-system fasteners
• Environmental compliance with RoHS 3 (2015/863/EU) standards for safe use across regulated industries

Professional Applications & Engineering Value

This SBR rubber flat washer delivers critical engineering solutions where standard metal washers fall short. The combination of SBR rubber material and polyester fiber reinforcement creates a robust sealing component that effectively absorbs vibration, prevents loosening of 3/8" fasteners, and maintains compression integrity in high-stress environments. Engineered for industrial washers applications, it solves common challenges in machinery, automotive, and plumbing systems where vibration resistance and fluid containment are paramount. The Durometer 70A hardness provides optimal flexibility while maintaining structural integrity, making it ideal for uneven surfaces and high-compression scenarios. With temperature resistance to 170°F, this black rubber washer performs reliably in both indoor and outdoor industrial settings.

Specification Summary & Compliance

This heavy-duty flat washer features precise inch-system dimensions with 0.375" ID, 2.25" OD, and thickness ranging 0.110-0.140". Manufactured from SBR rubber with polyester fiber filler and rated at Durometer 70A hardness, it maintains dimensional stability under compression. The product is fully RoHS 3 (2015/863/EU) compliant and rated for continuous service up to 170°F maximum temperature, meeting industrial standards for environmental safety and thermal performance.