S-95630A873 0.156" ID x 0.312" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature performance – withstands continuous exposure up to 500°F, ideal for demanding thermal environments.
• Superior chemical resistance – PTFE material prevents degradation from harsh industrial chemicals, extending service life.
• Consistent dimensional stability – precise 0.156" ID and 0.312" OD ensure reliable fit for No. 6 screws, reducing assembly errors.
• Optimal load distribution – flat washer design with 0.028-0.036" thickness minimizes surface stress and prevents fastener loosening.
• Durable mechanical properties – Durometer 55D hardness provides excellent resistance to compression set and deformation.
• Full regulatory compliance – meets RoHS 3 and REACH standards, ensuring safe use in regulated industrial applications.
• Corrosion-free operation – non-conductive PTFE construction eliminates galvanic corrosion risks in mixed-material assemblies.

Professional Applications & Engineering Value

These PTFE plastic flat washers deliver critical engineering solutions where thermal stability and chemical inertness are paramount. The white PTFE material maintains structural integrity in aggressive environments, preventing swelling or brittleness that plagues conventional polymers. With a maximum temperature rating of 500°F, they outperform most plastic washers in high-heat applications like chemical processing equipment, food machinery sterilization zones, and automotive thermal management systems. The 0.156" ID precisely accommodates No. 6 screws while the 0.312" OD provides optimal bearing surface, effectively distributing clamp load in assemblies involving dissimilar metals or fragile composites. This combination of chemical resistance and thermal endurance makes them indispensable for preventing fastener seizure and maintaining bolt preload in corrosive or thermally cycling environments.

Specification Summary & Compliance

Manufactured to inch system standards with ID 0.156" and OD 0.312" for No. 6 screw compatibility. Thickness tolerance maintained at 0.028-0.036" for consistent performance. Material hardness specified as Durometer 55D. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates. Maximum service temperature certified at 500°F.