S-93785A818 0.094" ID x 0.25" OD ASME B18.21.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional Thermal Stability - Withstands continuous exposure from -20°F to 500°F, ensuring reliable performance in extreme temperature applications without degradation.
• Superior Mechanical Strength - Rockwell M103 hardness provides excellent resistance to deformation and wear under load, extending service life.
• Chemical & Corrosion Resistance - Inherent PEEK material properties prevent deterioration from oils, chemicals, and harsh industrial environments.
• Precision Fit for No. 2 Screws - 0.094" ID ensures secure fastening with minimal play, reducing vibration-induced loosening in assemblies.
• Broad Load Distribution - 0.25" OD design spreads pressure evenly, protecting sensitive surfaces and preventing embedment.
• Regulatory Compliance Assurance - Meets ASME B18.21.1 dimensional standards and environmental regulations (RoHS 3 & REACH) for global supply chain compatibility.
• Consistent Dimensional Accuracy - Tight 0.016-0.025" thickness tolerance guarantees uniform performance in high-precision applications.

Professional Applications & Engineering Value

These PEEK plastic flat washers deliver critical solutions for demanding environments where metal components fail. The black PEEK material maintains structural integrity across a -20°F to 500°F temperature range, making them ideal for aerospace, automotive, and chemical processing equipment. Their Rockwell M103 hardness prevents brinelling on soft substrates while providing excellent electrical insulation. The ASME B18.21.1 compliant design ensures precise load distribution for No. 2 screw applications, eliminating galvanic corrosion risks in mixed-material assemblies. These washers solve common industrial pain points including thermal expansion mismatches, chemical degradation, and regulatory compliance challenges.

Specification Summary & Compliance

Manufactured to ASME B18.21.1 flat washer specifications with dimensional accuracy: 0.094" ID, 0.25" OD, and 0.016-0.025" thickness range. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no SVHC above 0.1% weight threshold. Temperature rating certified for continuous operation between -20°F and 500°F. Material conformity ensures compatibility with industrial quality management systems and global environmental standards.