S-90131A654 1.875" ID x 4" OD Abrasion-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior vibration damping and shock absorption with SBR rubber construction, reducing equipment wear and noise in demanding applications.
• Enhanced structural integrity and load distribution due to polyester fiber reinforcement, preventing deformation under pressure.
• Reliable sealing and environmental protection against moisture, dust, and chemicals, ideal for industrial settings.
• Consistent performance in high-temperature environments, withstanding up to 170°F without compromising flexibility.
• Precise fit for 1 3/4" screws with 1.875" ID and 4" OD, ensuring easy installation and secure fastening.
• Optimal hardness and durability with Durometer 70A rating, offering long-lasting resilience against compression and abrasion.
• Compliance with global environmental standards, including RoHS 3 and REACH, ensuring safe and sustainable use.

Professional Applications & Engineering Value

This SBR rubber flat washer is engineered to address common industrial challenges such as vibration-induced loosening and fluid leakage. The SBR rubber material combined with polyester fiber filler provides excellent elasticity and tear resistance, making it suitable for heavy-duty machinery, automotive assemblies, and plumbing systems. Its black color and flat design ensure compatibility with standard inch system components, while the Durometer 70A hardness maintains seal integrity under dynamic loads. Ideal for applications requiring temperature resistance up to 170°F, this washer delivers reliable sealing and vibration resistance, reducing maintenance costs and enhancing operational safety in industrial environments.

Specification Summary & Compliance

This washer adheres to precise dimensional tolerances with an ID of 1.875", OD of 4", and thickness ranging from 0.156" to 0.218", ensuring accurate fit for 1 3/4" screw sizes. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, confirming its safety for use in regulated industries. The polyester fiber-reinforced SBR rubber construction supports consistent performance in various applications, backed by environmental and quality assurances.