S-95647A311 0.188" ID x 0.438" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent chemical resistance protects against corrosion in harsh industrial environments
• Reliable electrical insulation properties for safe use in electrical applications
• Wide operating temperature range from -40°F to 180°F ensures consistent performance
• Superior dimensional stability maintains precise fit and function under various conditions
• RoHS 3 compliance meets environmental regulations for global industrial applications
• Low friction surface reduces wear and extends service life of assembled components
• Lightweight Delrin® construction ideal for applications where weight reduction is critical

Professional Applications & Engineering Value

These Delrin® Acetal Plastic Flat Washers provide essential solutions for engineering challenges where metal washers would be problematic. The white plastic construction offers superior chemical resistance, making them ideal for applications involving solvents, fuels, and cleaning agents. Their non-conductive properties make them perfect for electrical insulation in control panels, electronic enclosures, and power distribution systems. The precise 0.188" ID x 0.438" OD dimensions ensure perfect compatibility with No. 8 screw sizes, while the Delrin® material provides excellent creep resistance and maintains dimensional stability across the broad temperature range from -40°F to 180°F, preventing loosening in thermal cycling applications.

Specification Summary & Compliance

These flat washers feature precise inch system dimensions with 0.188" inner diameter and 0.438" outer diameter, designed specifically for No. 8 screw sizes. The thickness ranges from 0.036" to 0.065" ensuring proper fit and compression. Manufactured from Delrin® Acetal Plastic in white color, these washers are RoHS 3 (2015/863/EU) compliant and suitable for industrial applications requiring reliable performance in temperature extremes from -40°F to 180°F.