S-90130A027 0.23" ID x 0.625" OD Rubber Sealing Washers

Key Features & Benefits at a Glance

• Superior sealing performance with EPDM rubber construction, preventing fluid and dust ingress in industrial applications
• Excellent vibration dampening properties to reduce equipment wear and maintain assembly integrity
• Broad temperature resilience from -20°F to 212°F (-29°C to 100°C) for stable performance in varying environments
• Consistent dimensional accuracy with 0.23" ID and 0.625" OD ensuring perfect fit for 1/4" screw applications
• Optimal hardness balance with Durometer 65A providing both flexibility for sealing and durability against compression
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Enhanced service life through EPDM's inherent resistance to weathering, oxidation, and common chemicals

Professional Applications & Engineering Value

These EPDM rubber flat washers deliver critical engineering solutions where reliable sealing and vibration isolation are paramount. The black EPDM material excels in outdoor equipment, automotive assemblies, and electrical enclosures exposed to moisture, ozone, and temperature fluctuations. With precise 0.23" ID matching standard 1/4" screw fasteners, these flat washers prevent loosening from mechanical vibration while creating effective seals against water and air infiltration. The Durometer 65A hardness provides ideal compression recovery for long-term gasketing applications without permanent deformation, making them essential components in HVAC systems, plumbing fixtures, and industrial machinery requiring consistent performance across the specified temperature range.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.23" inner diameter, 0.625" outer diameter, and 0.078-0.108" thickness range for consistent performance in inch-system applications. These flat washers comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they contain no restricted substances above threshold limits. The EPDM rubber composition maintains its physical properties across the full operating temperature range of -20°F to 212°F, providing reliable service in diverse industrial environments while meeting international environmental and safety standards.