S-93785A805 0.094" ID x 0.25" OD ASME B18.21.1 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in environments ranging from -20°F to 500°F, preventing deformation under extreme conditions.
• Superior mechanical strength and rigidity due to 30% carbon filler, enhancing load distribution and reducing creep under sustained pressure.
• Excellent chemical resistance against a wide range of industrial chemicals, ensuring longevity in corrosive or aggressive media.
• High hardness (Rockwell M103) provides outstanding wear resistance, minimizing material degradation and extending service life.
• Precise dimensional compliance with ASME B18.21.1 standards, ensuring consistent fit and function with No. 2 screws in inch-system assemblies.
• Regulatory compliance with RoHS 3 and REACH, supporting sustainable and safe use in global industrial supply chains.
• Lightweight and non-conductive properties reduce overall assembly weight and eliminate electrical interference risks.

Professional Applications & Engineering Value

This carbon-filled PEEK plastic flat washer is engineered to address critical challenges in high-performance industries where metal washers fail. Its 30% carbon reinforcement significantly enhances structural integrity, making it ideal for applications in aerospace, automotive, and chemical processing equipment. The material’s inherent chemical resistance and ability to withstand temperatures from -20°F to 500°F prevent common issues like galvanic corrosion, thermal expansion mismatches, and solvent-induced swelling. By complying with ASME B18.21.1, it ensures precise alignment and uniform clamping force for No. 2 screw fastenings, reducing the risk of loosening in vibrating environments. This washer delivers long-term reliability, lowers maintenance costs, and supports efficient assembly in demanding operational settings.

Specification Summary & Compliance

This flat washer features an ID of 0.094" and OD of 0.25" with a thickness range of 0.016-0.025", manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The use of carbon-filled PEEK plastic with a hardness of Rockwell M103 guarantees consistent mechanical properties and operational reliability across specified temperature extremes.