S-95630A841 0.344" ID x 1.25" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability maintains performance in applications up to 500°F, preventing deformation and ensuring long-term reliability
• Superior chemical resistance from PTFE material protects against corrosive substances, extending component lifespan in harsh environments
• Consistent dimensional accuracy with 0.344" ID and 1.25" OD ensures perfect fit for 5/16" screws, reducing installation errors
• Optimized hardness profile (Durometer 55D) provides ideal balance between sealing capability and mechanical durability
• Regulatory compliance assurance with RoHS 3 and REACH standards meets global environmental requirements for industrial applications
• Non-corrosive properties eliminate galvanic corrosion risks when used with dissimilar metals in electrical or chemical processing
• Precision thickness control (0.057-0.067") enables uniform load distribution and consistent sealing performance

Professional Applications & Engineering Value

This PTFE plastic flat washer delivers critical engineering solutions where conventional washers fail. The polytetrafluoroethylene material provides inherent chemical resistance against aggressive solvents, acids, and bases while maintaining mechanical integrity across extreme temperature cycles from cryogenic to 500°F. The white PTFE construction offers excellent dielectric properties for electrical insulation applications and won't contaminate sensitive processes in food, pharmaceutical, or semiconductor manufacturing. With its Durometer 55D hardness, this washer creates reliable seals in pump systems, chemical processing equipment, and high-temperature machinery without compromising on dimensional stability or causing galling issues common with metal washers. The precise inch system dimensions ensure compatibility with standard 5/16" fasteners while the 1.25" OD provides optimal bearing surface for load distribution.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.344" inner diameter, 1.25" outer diameter, and thickness ranging from 0.057" to 0.067" for consistent performance with 5/16" screw sizes. Manufactured from premium PTFE plastic with Durometer 55D hardness, the product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to the latest environmental and safety standards for industrial components. The washer's construction and material properties are engineered to withstand continuous service at temperatures up to 500°F while maintaining mechanical and chemical integrity.