S-95630A881 0.406" ID x 0.625" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability - withstands continuous operation up to 500°F (260°C) for reliable performance in high-temperature industrial environments
• Superior chemical resistance - PTFE construction provides excellent protection against corrosive substances and harsh chemical exposure
• Consistent mechanical properties - maintains Durometer 55D hardness for reliable load distribution and vibration damping
• Precision dimensional fit - 0.406" ID and 0.625" OD ensure perfect alignment with 3/8" fasteners for secure assembly
• Environmental compliance assurance - meets RoHS 3 and REACH standards for responsible manufacturing and global market acceptance
• Optimal thickness variation - 0.064-0.104" range accommodates manufacturing tolerances while maintaining sealing effectiveness
• Non-contaminating white material - ideal for cleanroom applications and industries requiring material purity

Professional Applications & Engineering Value

This PTFE plastic flat washer delivers critical performance advantages in demanding industrial settings where conventional washers fail. The polytetrafluoroethylene material provides exceptional chemical resistance against aggressive solvents, acids, and bases, making it ideal for chemical processing equipment, laboratory apparatus, and pharmaceutical manufacturing. The high-temperature capability up to 500°F ensures reliable operation in thermal processing systems, automotive engine compartments, and industrial ovens where thermal cycling would degrade standard plastic washers. The flat washer design with precise inch dimensions (0.406" ID x 0.625" OD) creates effective sealing surfaces and proper load distribution for 3/8" fasteners in assembly applications requiring vibration resistance and thermal expansion accommodation. The white PTFE construction offers additional benefits in food processing and medical equipment where material visibility and cleanliness are paramount.

Specification Summary & Compliance

This flat washer features inch system dimensions with 0.406" inner diameter, 0.625" outer diameter, and thickness ranging from 0.064" to 0.104" to accommodate standard manufacturing tolerances. Designed specifically for 3/8" screw size applications, the washer maintains consistent Durometer 55D hardness for reliable performance. The product fully complies with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC requirements as of June 2023. Manufactured from premium PTFE plastic material, this washer meets industrial specifications for chemical resistance and thermal stability in demanding operating environments.