S-90132A140 0.203" ID x 0.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional electrical and thermal insulation provided by hard fiber material, preventing current leakage and component damage in electrical assemblies
• Superior vibration resistance and load distribution with precise 0.203" ID and 0.5" OD dimensions, maintaining fastener integrity under mechanical stress
• Reliable performance in high-temperature environments withstanding up to 230°F while maintaining structural stability
• Consistent compression resistance thanks to Rockwell R80 hardness rating, ensuring long-term sealing effectiveness
• Guaranteed regulatory compliance with RoHS 3 and REACH standards, making them suitable for global industrial supply chains
• Optimized for No. 10 screw applications with precise inner diameter, preventing loosening and ensuring secure fastening
• Corrosion-resistant black finish providing additional protection against environmental factors in harsh operating conditions

Professional Applications & Engineering Value

This hard fiber flat washer delivers critical engineering solutions where electrical insulation, thermal resistance, and vibration damping are paramount. The hard fiber material composition effectively isolates electrical components while the precise 0.203" ID x 0.5" OD dimensions ensure perfect fitment with No. 10 screws in inch-system applications. Industrial engineers specify these washers for electrical enclosures, motor assemblies, and high-temperature equipment where traditional metal washers could cause short circuits or galvanic corrosion. The black fiber construction maintains dimensional stability under continuous 230°F operating conditions, preventing deformation that could compromise seal integrity in automotive, aerospace, and industrial machinery applications.

Specification Summary & Compliance

This flat washer features precision dimensions of 0.203" inner diameter, 0.5" outer diameter, and 0.036-0.044" thickness range, engineered for exact fit with No. 10 screws in inch measurement system applications. Manufactured to industrial standards with Rockwell R80 hardness for consistent performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), meeting international regulatory requirements for hazardous substance restrictions.