S-93650A110 0.171" ID x 0.313" OD Moisture-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior durability with polyurethane rubber construction that resists wear and maintains performance in demanding environments
• Excellent sealing and vibration dampening thanks to the 70A Durometer hardness, providing reliable shock absorption and noise reduction
• Wide temperature resistance from -10°F to 150°F, ensuring consistent performance in varying thermal conditions
• Precise dimensional fit with 0.171" ID and 0.313" OD, offering accurate alignment and secure fastening for No. 8 screws
• Chemical and environmental resistance inherent to clear polyurethane, protecting assemblies from moisture and mild corrosive agents
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Consistent thickness control between 0.060" and 0.067", ensuring uniform load distribution and reliable assembly pressure

Professional Applications & Engineering Value

These clear polyurethane rubber flat washers deliver exceptional engineering value by solving common industrial challenges like vibration-induced loosening, thermal expansion mismatches, and chemical exposure. The polyurethane material offers superior resilience compared to standard rubbers, maintaining its 70A Durometer hardness across a broad temperature range from -10°F to 150°F. This makes them ideal for precision assemblies requiring both electrical insulation and environmental sealing in applications such as electronic enclosures, automotive components, and food processing equipment. The flat washer design with precise 0.171" ID ensures perfect compatibility with No. 8 screws, preventing galvanic corrosion while providing reliable load distribution. Their clear appearance allows for easy inspection in quality-critical applications where visual monitoring is essential.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.171" inner diameter, 0.313" outer diameter, and thickness ranging from 0.060" to 0.067" for consistent performance. Manufactured from polyurethane rubber with 70A Durometer hardness, it maintains dimensional stability across the specified temperature range. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global industrial applications.