S-95630A740 21 mm ID x 37 mm 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 with a maximum temperature rating of 500°F, ensuring reliable performance in high-heat industrial processes
- Superior chemical resistance due to PTFE material composition, protecting against corrosion and extending component lifespan
- Precise dimensional fit with 21mm ID and 37mm OD designed specifically for M20 screws, preventing loosening and ensuring secure fastening
- Consistent load distribution with 2.7-3.3mm thickness and Durometer 51D hardness, reducing stress concentrations on mating surfaces
- Regulatory compliance assurance with RoHS 3 and REACH adherence, meeting international environmental and safety standards
- Non-conductive and low-friction properties for electrical insulation and smooth assembly in sensitive equipment applications
Professional Applications & Engineering Value
This PTFE flat washer delivers critical performance advantages in demanding environments where conventional washers fail. The white PTFE plastic construction provides inherent chemical resistance against aggressive solvents, acids, and bases, making it ideal for chemical processing equipment, pharmaceutical manufacturing, and food processing applications. The metric dimensions (21mm ID × 37mm OD) ensure perfect compatibility with M20 screw assemblies while the 500°F temperature rating maintains structural integrity in high-temperature operations like oven manufacturing, automotive systems, and thermal processing equipment. The material's low coefficient of friction reduces galling and seizing issues, while the Durometer 51D hardness provides optimal compression resistance without damaging delicate surfaces.
Specification Summary & Compliance
This metric flat washer features precision dimensions with 21mm internal diameter, 37mm outer diameter, and 2.7-3.3mm thickness range for consistent performance. Manufactured from PTFE plastic with Durometer 51D hardness, it maintains dimensional stability across extreme temperature cycles. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance compliance for global industrial applications.
