S-93785A210 0.656" ID x 1.75" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in environments ranging from -50°F to 500°F, preventing deformation and failure in high-heat applications.
• Superior mechanical strength with a Rockwell M103 hardness rating, offering excellent resistance to wear, creep, and compression set under load.
• Chemical and corrosion resistance inherent to PEEK plastic, ensuring long-term integrity when exposed to harsh industrial chemicals and fluids.
• Precision dimensional fit with a 5/8" inner diameter and 1.75" outer diameter, providing accurate alignment and even load distribution for #5/8 inch screws.
• Regulatory compliance assurance as RoHS 3 and REACH compliant, meeting strict international standards for hazardous substances and safe use in industrial settings.
• Lightweight and non-conductive properties reduce overall assembly weight and eliminate risks associated with electrical conductivity or galvanic corrosion.
• Consistent thickness tolerance between 0.074" and 0.121" ensures uniform clamping force and vibration resistance in demanding mechanical assemblies.

Professional Applications & Engineering Value

This PEEK plastic flat washer is engineered to solve critical challenges in demanding industrial environments where metal washers fail. Its high-temperature resistance up to 500°F makes it ideal for automotive, aerospace, and chemical processing equipment, preventing thermal degradation that compromises seal integrity. The beige PEEK material maintains dimensional stability across extreme temperature swings from -50°F, eliminating the risk of brittleness in cryogenic conditions. For electrical insulation applications, this inch system washer provides reliable dielectric properties while distributing load evenly beneath 5/8" fasteners. The combination of chemical inertness and Rockwell M103 hardness ensures longevity in corrosive processing environments where metallic components would rapidly deteriorate, delivering maintenance-free service life in pumps, valves, and high-performance machinery.

Specification Summary & Compliance

This flat washer features precision inch system dimensions with 0.656" ID (For #5/8" Screw Size), 1.75" OD, and thickness ranging 0.074-0.121". Manufactured from PEEK plastic with Rockwell M103 hardness rating. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental and safety standards for industrial components.