S-90133A021 0.195" ID x 0.438" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior vibration damping with Durometer 55A hardness for extended equipment life and reduced noise
• Excellent sealing performance using flexible Neoprene Rubber to prevent fluid and dust ingress
• Wide temperature resistance from -20°F to 180°F for reliable operation in varying environments
• Precise dimensional fit with 0.195" ID and 0.438" OD ensuring perfect compatibility with No. 12 screws
• Enhanced chemical and weather resistance thanks to black Neoprene Rubber construction
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
• Consistent thickness control between 0.078-0.108" for uniform pressure distribution

Professional Applications & Engineering Value

This Neoprene Rubber Flat Washer delivers critical engineering solutions where standard metal washers fall short. The Durometer 55A hardness provides optimal flexibility for vibration damping in machinery, automotive, and electrical enclosures, preventing loosening from constant motion. Its temperature resistance from -20°F to 180°F makes it ideal for outdoor equipment and industrial environments experiencing thermal cycling. The black Neoprene material creates reliable sealing against moisture, oils, and chemicals while maintaining compression set resistance. Engineered specifically for No. 12 screw applications, this flat washer ensures perfect fitment with 0.195" ID and 0.438" OD dimensions, eliminating installation issues and reducing maintenance cycles across various industrial assemblies.

Specification Summary & Compliance

This inch-system flat washer maintains precise dimensional tolerances with 0.195" inner diameter, 0.438" outer diameter, and thickness ranging 0.078-0.108". Manufactured from Neoprene Rubber with Durometer 55A hardness, it delivers consistent performance across its specified temperature range of -20°F to 180°F. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in global markets. Designed specifically for No. 12 screw applications, this washer meets industrial standards for vibration isolation and sealing performance.