S-91666A160 10.5 mm ID x 21 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Superior chemical resistance from PVDF plastic construction, ideal for harsh industrial environments where corrosion is a concern.
• Reliable high-temperature performance up to 300°F (149°C), ensuring dimensional stability and function in demanding thermal applications.
• Consistent mechanical strength with a Rockwell R93 hardness rating, providing excellent load distribution and long-term durability.
• Precise M10 metric sizing (10.5mm ID, 21mm OD) for a perfect fit with standard fasteners, reducing installation errors.
• Full regulatory compliance with RoHS 3 and REACH, guaranteeing safety and environmental standards for global industrial use.
• Lightweight and non-conductive properties of PVDF, offering advantages in electrical and weight-sensitive assemblies.

Professional Applications & Engineering Value

This M10 PVDF plastic flat washer is engineered to solve critical challenges in aggressive and high-heat settings. Its PVDF material delivers exceptional resistance to a wide range of chemicals, acids, and solvents, preventing degradation and failure in chemical processing, water treatment, and semiconductor manufacturing. The flat washer design ensures even load distribution under bolt heads or nuts, protecting surfaces from damage. With a maximum temperature rating of 300°F, it maintains integrity in applications involving hot fluids or machinery, eliminating the risk of melting or deformation that plagues standard plastic washers. This combination of chemical resistance and thermal stability makes it a reliable, long-lasting sealing and insulating component.

Specification Summary & Compliance

This metric flat washer conforms to standard dimensional specifications with an Inside Diameter (ID) of 10.5 mm, Outside Diameter (OD) of 21 mm, and a Thickness of 1.7-2.3 mm, designed for use with M10 screw sizes. The manufacturing and material quality ensure consistent performance. It is fully compliant with RoHS 3 (2015/863/EU) and the latest REACH (EC 1907/2006) regulations, affirming its safety for industrial use and environmental responsibility.