S-95630A894 0.188" ID x 0.438" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional chemical resistance for reliable performance in corrosive industrial environments
• High-temperature stability maintaining integrity in applications up to 500°F (260°C)
• Consistent dimensional accuracy with 0.188" ID and 0.438" OD for precise No. 8 screw fitment
• Optimized load distribution through controlled thickness (0.036-0.065") and Durometer 55D hardness
• Superior non-stick properties preventing material buildup and easing maintenance
• Regulatory compliance assurance with RoHS 3 and REACH standards for global industrial use
• Excellent electrical insulation providing safe operation in electrical applications

Professional Applications & Engineering Value

This PTFE plastic flat washer delivers critical engineering solutions where conventional metal washers fail. The white PTFE material offers outstanding chemical resistance against acids, solvents, and aggressive fluids, making it ideal for chemical processing, pharmaceutical, and food industry applications. Its high-temperature capability up to 500°F ensures reliable performance in thermal cycling environments, while the precise inch dimensions (0.188" ID × 0.438" OD) provide perfect alignment for No. 8 screw size fastening systems. The combination of Durometer 55D hardness and controlled thickness variation (0.036-0.065") guarantees optimal sealing and vibration resistance without compromising assembly integrity.

Specification Summary & Compliance

This flat washer conforms to inch system measurement standards with precise dimensional tolerances: 0.188" inner diameter, 0.438" outer diameter, and thickness range of 0.036-0.065". Manufactured from PTFE plastic with Durometer 55D hardness rating, it maintains performance across extreme temperature conditions. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.