S-90133A520 0.15" ID x 0.438" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior vibration dampening with Durometer 55A hardness for reduced equipment wear and noise in dynamic applications
• Excellent sealing performance using flexible Neoprene Rubber to prevent fluid and dust ingress in industrial assemblies
• Broad temperature resilience from -20°F to 180°F for reliable operation in varied environmental conditions
• Precise dimensional fit with 0.15" ID and 0.438" OD ensuring secure placement on No. 8 screws
• Consistent thickness control between 0.046-0.078" for uniform load distribution and fastener stability
• Full regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial markets
• Durable black Neoprene construction offering resistance to oils, weathering, and compression set

Professional Applications & Engineering Value

This Neoprene Rubber Flat Washer delivers critical engineering solutions where standard metal washers fall short. Its 55A Durometer hardness provides optimal flexibility to absorb shocks and vibrations in machinery, automotive, and electrical enclosures, prolonging component life. The black Neoprene material inherently resists moisture, ozone, and moderate chemicals, making it ideal for outdoor or harsh environment applications. With a temperature range of -20°F to 180°F, it maintains seal integrity and compression recovery in HVAC systems, plumbing fixtures, and assembly lines. The precise 0.15" ID and 0.438" OD dimensions ensure easy installation on No. 8 screws, preventing loosening while distributing clamp load evenly to protect sensitive surfaces.

Specification Summary & Compliance

This flat washer conforms to inch system measurements with an inner diameter of 0.15", outer diameter of 0.438", and thickness tolerance of 0.046-0.078". Manufactured from Neoprene Rubber with a Durometer 55A hardness, it meets industry standards for flat washers in vibration management and sealing. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to hazardous substance restrictions and supporting sustainable procurement practices.