S-91145A226 0.118" ID x 0.25" OD Insulating Washers

Key Features & Benefits at a Glance

• Superior chemical resistance from Nylon 6/6 material, ensuring long-term reliability in harsh industrial environments
• Excellent electrical insulation properties for safe use in electrical assemblies and preventing short circuits
• Wide operating temperature range (-40°F to 180°F) for stable performance in both extreme cold and moderate heat conditions
• High durability with Rockwell R108 hardness, providing excellent wear resistance and maintaining dimensional stability under load
• Precision dimensional control with 0.118" ID and 0.25" OD ensuring perfect fit for No. 4 screws in inch system applications
• Full regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
• Optimized sleeve design with 0.139" OD and 0.125" height for enhanced load distribution and vibration resistance

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer delivers exceptional engineering value by solving critical industrial challenges. The sleeve washer design provides superior load distribution compared to standard flat washers, reducing stress concentrations and preventing material deformation around No. 4 screw fastening points. The Nylon 6/6 material offers inherent corrosion resistance, eliminating galvanic corrosion concerns when used with dissimilar metals. Its excellent electrical insulation properties make it ideal for electrical enclosures, control panels, and electronic assemblies where electrical isolation is critical. The wide temperature range ensures reliable performance in outdoor applications, automotive components, and industrial machinery exposed to varying environmental conditions. These industrial plastic washers maintain dimensional stability while providing consistent performance in chemical exposure scenarios where metal washers would degrade.

Specification Summary & Compliance

This precision sleeve washer features exact inch system dimensions including 0.118" ID, 0.25" OD, 0.046" thickness, and 0.171" overall height with sleeve-specific measurements of 0.139" OD and 0.125" height. Manufactured to precise dimensional standards for No. 4 screw applications, the washer demonstrates consistent performance across the specified temperature range of -40°F to 180°F. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial applications. The Rockwell R108 hardness rating confirms material consistency and mechanical performance reliability.