S-90131A557 1" ID x 2.25" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with SBR rubber construction to reduce noise and prevent fastener loosening in dynamic applications.
• Excellent sealing and gasketing properties to protect against dust, moisture, and light fluid ingress, extending equipment life.
• Enhanced load distribution from the 2.25" outer diameter, minimizing surface pressure and preventing damage to soft materials.
• Reinforced structural integrity with a polyester fiber filler, providing increased tear resistance and durability under stress.
• Consistent performance in varied temperatures, rated for a maximum of 170°F, ensuring reliability in many industrial environments.
• Precise fit for 1" screws with standard inch dimensions, ensuring easy installation and secure fastening.
• Safe for regulated industries with RoHS 3 (2015/863/EU) compliance, meeting strict environmental and health standards.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to solve common industrial challenges such as component wear, corrosion, and vibration-induced failure. The Durometer 70A hardness offers an ideal balance of flexibility and firmness, creating a reliable seal and shock-absorbing barrier in machinery, automotive assemblies, and electrical enclosures. Its black SBR rubber material with polyester fiber filler resists compression set and tearing, making it suitable for heavy-duty applications where consistent performance is critical. Use it in industrial washers setups for HVAC systems, conveyor equipment, or outdoor fixtures to enhance longevity and reduce maintenance costs, especially in environments with temperatures up to 170°F.

Specification Summary & Compliance

This washer adheres to standard inch system dimensions with an Inner Diameter of 1", Outer Diameter of 2.25", and Thickness of 0.110-0.140". It is manufactured to precise tolerances for a secure fit on 1" screw size applications. The product is RoHS 3 (2015/863/EU) Compliant, ensuring it is free from hazardous substances, and meets general industry standards for flat washers in material quality and performance.