S-91145A235 0.191" ID x 0.513" OD Insulating Washers

Key Features & Benefits at a Glance

• Superior chemical and abrasion resistance from Nylon 6/6 construction, ensuring long-term reliability in harsh industrial environments.
• Excellent electrical insulation properties for safe use in electrical assemblies and to prevent galvanic corrosion.
• Wide operating temperature range from -40°F to 180°F, maintaining performance and dimensional stability in both extreme cold and heat.
• High Rockwell R108 hardness provides excellent load distribution and resistance to deformation under pressure.
• Sleeve design offers extended bearing surface, protecting materials and preventing loosening from vibration.
• Precision inch dimensions (0.513" OD, 0.191" ID) ensure a perfect fit for No. 10 screws, facilitating easy and secure installation.
• Full RoHS 3 and REACH compliance guarantees environmental safety and meets stringent international regulatory standards.

Professional Applications & Engineering Value

This Nylon 6/6 plastic sleeve washer is engineered to solve common industrial challenges, including vibration-induced loosening, material degradation from chemicals, and the need for electrical isolation. Its sleeve design extends above the standard washer profile, providing a larger bearing surface that distributes clamp load more effectively, protecting sensitive substrates and increasing joint integrity. The off-white Nylon 6/6 material is inherently resistant to a wide range of chemicals, oils, and solvents, making it ideal for automotive, machinery, and electrical insulation applications. Its ability to perform reliably across a broad temperature range from -40°F to 180°F ensures consistent performance in both outdoor and high-heat environments, offering a durable, non-conductive, and compliant solution for demanding No. 10 screw assemblies.

Specification Summary & Compliance

This washer is manufactured to precise inch system dimensions with an Inside Diameter (ID) of 0.191", Outside Diameter (OD) of 0.513", and an Overall Height of 0.437". The sleeve features an OD of 0.312" and a height of 0.375". It is designed for use with No. 10 screw sizes and possesses a material hardness of Rockwell R108. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in regulated markets.