S-93650A283 0.812" ID x 1.25" OD Moisture-Resistant Cushioning Washers
Moisture-Resistant Cushioning Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior shock absorption and sealing with polyurethane rubber construction, reducing equipment vibration and preventing fluid ingress in demanding environments.
- Excellent clarity for visual inspection of underlying surfaces and alignment, facilitating easier maintenance and quality control checks.
- Reliable performance across a wide temperature range from -10°F to 150°F, ensuring dimensional stability and function in varied operational climates.
- Optimal load distribution and screw protection for 3/4" fasteners, thanks to the precise 0.812" ID and 1.25" OD, minimizing surface damage and loosening.
- Consistent 70A Durometer hardness provides a perfect balance of flexibility and firmness for long-lasting, non-marring applications.
- Guaranteed material safety and environmental compliance with RoHS 3 and REACH standards, making it suitable for sensitive and regulated industries.
- Durable thickness tolerance (0.110-0.140") ensures a reliable fit and consistent performance in repetitive assembly processes.
Professional Applications & Engineering Value
This clear polyurethane rubber flat washer is engineered to address common industrial challenges such as corrosion, component wear, and seal failure. Its polyurethane material offers exceptional resistance to oils, greases, and ozone, outperforming standard rubber in harsh conditions. The flat washer design and 70A Durometer hardness provide excellent compression set resistance, maintaining a tight seal and even pressure distribution under 3/4" screws. Ideal for industrial applications in machinery, automotive assemblies, and electrical enclosures, it prevents galvanic corrosion between dissimilar metals and absorbs shocks, thereby extending equipment lifespan. The temperature resistance from -10°F to 150°F ensures reliability in both cold storage and heated environments, making it a versatile choice for engineers seeking durable, RoHS and REACH compliant sealing solutions.
Specification Summary & Compliance
This washer adheres to inch system dimensions with an Inside Diameter (ID) of 0.812", Outside Diameter (OD) of 1.25", and Thickness of 0.110-0.140", designed for 3/4" screw size. It meets industry standards for flat washers with a Durometer 70A hardness and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of hazardous substances and safe for widespread industrial use.