S-91145A154 0.173" ID x 0.344" OD Insulating Washers

Key Features & Benefits at a Glance

• Superior electrical insulation provided by Nylon 6/6 material, preventing current leakage and short circuits in sensitive assemblies
• Excellent chemical and corrosion resistance for reliable performance in harsh industrial environments and exposure to various substances
• Wide temperature tolerance from -40°F to 180°F, maintaining dimensional stability and mechanical properties across extreme operating conditions
• Optimized dimensional accuracy with 0.173" ID precisely matching No. 8 screws for secure fastening without loosening or vibration issues
• Enhanced durability and wear resistance thanks to Rockwell R108 hardness, ensuring long service life in high-cycle applications
• Environmental compliance assurance with RoHS 3 (2015/863/EU) certification, meeting international regulatory standards for hazardous substances
• Reduced assembly weight and cost compared to metal alternatives while maintaining critical performance characteristics

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer delivers exceptional engineering value across multiple industrial sectors where electrical insulation, chemical resistance, and thermal stability are paramount. The sleeve design provides extended protection along fastener shafts, preventing galvanic corrosion between dissimilar metals and offering superior sealing capabilities. In electrical enclosures, control panels, and automotive assemblies, these washers solve critical challenges of weight reduction without compromising performance. The off-white color allows for easy identification and quality control during installation. Manufacturers benefit from the material's self-lubricating properties that reduce friction during tightening while maintaining consistent clamping force. The 0.813" overall height and 0.75" sleeve height provide optimal spacing and insulation in stacked assemblies, making these inch system washers ideal for legacy equipment and North American manufacturing standards.

Specification Summary & Compliance

This sleeve washer features precise dimensional specifications including 0.173" ID, 0.344" OD, and 0.063" thickness with manufacturing tolerances consistent with industrial standards for plastic washers. The product is manufactured from Nylon 6/6 material with Rockwell R108 hardness rating and complies with RoHS 3 (2015/863/EU) requirements, ensuring freedom from restricted hazardous substances. The washer is designed specifically for No. 8 screw applications within the inch measurement system and maintains performance across the specified temperature range of -40°F to 180°F without degradation of mechanical properties.