S-90130A120 0.355" ID x 0.812" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with EPDM rubber construction that provides excellent resistance to environmental factors and prevents fluid/air leakage
• Optimal compression and recovery with Durometer 55A hardness, maintaining effective sealing under varying pressure conditions
• Exceptional temperature resilience from -20°F to 212°F (-29°C to 100°C), ensuring reliable performance in both freezing and high-heat environments
• Effective vibration dampening that reduces noise and prevents fastener loosening in industrial machinery and equipment
• Precise dimensional compatibility with 3/8" screws, featuring 0.355" ID and 0.812" OD for perfect fit and uniform load distribution
• Environmental compliance assurance with RoHS 3 (2015/863/EU) certification, meeting strict regulatory standards for hazardous substances
• Durable black EPDM material offering excellent weather, ozone, and UV resistance for extended service life in outdoor applications

Professional Applications & Engineering Value

This EPDM rubber flat washer delivers critical engineering solutions for industrial applications where reliable sealing and vibration control are paramount. The black EPDM rubber construction provides exceptional resistance to weathering, compression set, and temperature extremes from -20°F to 212°F, making it ideal for outdoor equipment, HVAC systems, and automotive assemblies. The Durometer 55A hardness ensures optimal compression without permanent deformation, maintaining seal integrity in fluctuating pressure conditions. With precise 3/8" screw size compatibility and inch system measurements, this flat washer prevents fluid ingress, reduces maintenance frequency, and extends equipment lifespan in demanding environments requiring environmental sealing and vibration dampening capabilities.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.355" ID, 0.812" OD, and thickness ranging 0.110-0.140" for precise fit with 3/8" fasteners. Manufactured from EPDM rubber with Durometer 55A hardness, it maintains dimensional stability across the specified temperature range. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international standards for restricted hazardous substances, and is engineered for applications requiring reliable performance in temperature-variable environments.