S-90133A435 0.74" ID x 1.5" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with neoprene rubber construction that effectively prevents fluid and dust ingress in demanding environments.
• Excellent vibration dampening to protect fastened assemblies from loosening, reducing maintenance needs and enhancing equipment longevity.
• Wide temperature resilience from -20°F to 180°F, ensuring reliable performance in both cold and moderately high-heat industrial settings.
• Optimized dimensional fit with a 0.74" ID for 3/4" screws and a 1.5" OD, providing a secure and consistent load distribution surface.
• Durable 55A Durometer hardness offers a balance of flexibility and resistance to compression set, maintaining seal integrity over time.
• Full regulatory compliance with RoHS 3 and REACH standards, making it suitable for use in regulated industries and global supply chains.
• Consistent 0.110-0.140" thickness ensures uniform pressure application and reliable performance in repetitive assembly applications.

Professional Applications & Engineering Value

This neoprene rubber flat washer is engineered to address common challenges in industrial and commercial applications where vibration resistance and environmental sealing are critical. The black neoprene material provides excellent resistance to weathering, ozone, and compression set, making it ideal for use in machinery, automotive, HVAC, and outdoor equipment. Its 55A Durometer hardness ensures it remains flexible enough to conform to surfaces, creating a tight seal without over-compressing, while the precise 0.74" ID for 3/4" screw size guarantees a perfect fit, preventing misalignment and potential leak paths. This combination of material properties and dimensional accuracy solves issues related to fastener loosening, fluid leakage, and gasket failure in temperature-varying environments from -20°F to 180°F.

Specification Summary & Compliance

This flat washer conforms to inch system measurements with an Inside Diameter of 0.74", Outside Diameter of 1.5", and a Thickness range of 0.110-0.140". It is manufactured from neoprene rubber with a Durometer 55A hardness and is designed for use with 3/4" screw size. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for hazardous substances.