S-95630A836 0.281" ID x 1.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional high-temperature resistance – maintains structural integrity and performance in environments up to 500°F, preventing deformation and failure in demanding industrial settings.
• Superior chemical resistance – PTFE material withstands exposure to harsh chemicals and corrosive substances, ensuring long-term reliability in aggressive processing applications.
• Low friction properties – reduces wear on mating surfaces and minimizes torque requirements during installation, extending service life of both fastener and assembly.
• Optimal hardness balance – Durometer 55D hardness provides sufficient compression resistance while maintaining effective sealing capabilities without damaging connected components.
• Precision dimensional consistency – 0.281" ID and 1.5" OD with controlled thickness (0.057-0.067") ensures proper fit and uniform load distribution for 1/4" fasteners.
• Regulatory compliance assurance – meets RoHS 3 and REACH standards, making these washers suitable for regulated industries and international supply chains.
• Excellent electrical insulation – PTFE construction provides reliable dielectric properties for applications requiring electrical isolation and safety.

Professional Applications & Engineering Value

This PTFE plastic flat washer delivers critical performance advantages in extreme operating conditions where conventional washers fail. The chemical-resistant properties of PTFE (commonly known as Teflon®) make it ideal for chemical processing, pharmaceutical, and food manufacturing equipment where exposure to aggressive substances would degrade metal or other plastic washers. The high-temperature capability up to 500°F ensures reliable performance in thermal applications including oven assemblies, heat treatment fixtures, and engine compartments. The combination of low friction characteristics and Durometer 55D hardness provides optimal sealing performance without galling or seizing, while the precise inch dimensions (1/4" ID x 1.5" OD) ensure proper fitment in industrial machinery requiring reliable insulation and corrosion protection.

Specification Summary & Compliance

This flat washer features precision inch dimensions with 0.281" inner diameter, 1.5" outer diameter, and controlled thickness between 0.057-0.067" for consistent performance with 1/4" fasteners. Manufactured from PTFE plastic with Durometer 55D hardness, the washer maintains dimensional stability across its operating range. The product complies with RoHS 3 (2015/863/EU) restrictions on hazardous substances and meets REACH (EC 1907/2006) requirements regarding Substances of Very High Concern (SVHC) as of June 14, 2023, ensuring regulatory acceptance for international industrial applications.