S-91145A129 0.115" ID x 0.235" OD Insulating Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with Nylon 6/6 construction, eliminating rust and galvanic corrosion in harsh environments
• Excellent electrical insulation properties for safe use in electrical assemblies and sensitive equipment
• Wide operating temperature range from -40°F to 180°F, ensuring reliable performance in both extreme cold and moderate heat
• High durability and wear resistance thanks to the Rockwell R108 hardness rating, extending the washer's service life
• Precise dimensional fit with 0.115" ID designed specifically for No. 4 screws, preventing loosening and misalignment
• Environmental compliance assurance with RoHS 3 (2015/863/EU) compliance, meeting strict international regulatory standards
• Lightweight and non-magnetic properties of nylon, ideal for applications where weight and magnetic interference are concerns

Professional Applications & Engineering Value

This Nylon 6/6 Plastic Sleeve Washer is engineered to address common industrial challenges where metal fasteners fall short. Its non-conductive properties make it indispensable in electrical enclosures, control panels, and electronic assemblies, preventing short circuits. The sleeve design provides superior load distribution and protects surfaces from abrasion. In corrosive environments—such as chemical processing, marine applications, or outdoor equipment—the off-white nylon material resists moisture, chemicals, and UV degradation, ensuring long-term reliability without the maintenance demands of metal washers. The precise inch system dimensions and compatibility with No. 4 screw size guarantee a secure fit, reducing assembly time and vibration-induced failures.

Specification Summary & Compliance

This washer features an ID of 0.115", OD of 0.235", thickness of 0.047", and overall height of 0.172", manufactured to standard inch system tolerances for consistent performance. It is compliant with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances. The Nylon 6/6 material meets industry standards for plastic fasteners, providing reliable mechanical properties and temperature resistance from -40°F to 180°F.