S-93785A180 0.531" ID x 1.375" OD Plastic Washers
Plastic Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional thermal stability maintains structural integrity from -50°F to 500°F, preventing deformation in extreme environments
- Superior chemical resistance of PEEK material ensures long-term reliability in corrosive industrial applications
- Precision dimensional control with 0.531" ID and 1.375" OD guarantees perfect fit for 1/2" screw assemblies
- Optimized load distribution through controlled thickness (0.064-0.104") minimizes surface stress and prevents material damage
- High mechanical strength with Rockwell M103 hardness provides excellent wear resistance and durability
- Regulatory compliance assurance with RoHS 3 and REACH standards meets global environmental and safety requirements
- Lightweight non-conductive properties make ideal for electrical insulation and weight-sensitive applications
Professional Applications & Engineering Value
This PEEK plastic flat washer delivers critical performance advantages in demanding industrial settings where traditional metal washers fail. The high-temperature resistance (500°F maximum) makes it indispensable for automotive, aerospace, and chemical processing equipment exposed to thermal cycling. Its beige PEEK construction provides excellent chemical inertness against fuels, solvents, and aggressive fluids while maintaining dimensional stability. The precise inch system dimensions (0.531" ID, 1.375" OD) ensure reliable seating and uniform clamping force distribution for 1/2" fasteners, preventing loosening in vibrating environments. Engineers specify this flat washer for electrical insulation applications where non-conductivity is essential, while the Rockwell M103 hardness guarantees long service life in high-wear scenarios.
Specification Summary & Compliance
Manufactured to precision inch system standards with ID: 0.531", OD: 1.375", and thickness range: 0.064-0.104" for 1/2" screw size applications. The PEEK plastic material meets Rockwell M103 hardness specifications and operates within -50°F to 500°F temperature range. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptance.
