S-95649A320 3.2 mm ID x 8 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional chemical resistance for reliable performance in harsh industrial environments, reducing corrosion and maintenance needs.
• Low friction properties minimize wear and prevent galling, extending the service life of both the washer and mating components.
• Precise metric sizing (3.2mm ID, 8mm OD) ensures perfect fit for M3 screws, providing consistent load distribution and assembly integrity.
• UHMW plastic construction offers high impact strength and durability, ideal for applications requiring lightweight, non-conductive components.
• Temperature resistance up to 180°F maintains dimensional stability under moderate heat, suitable for various operational conditions.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence, supporting sustainable manufacturing practices.
• Off-white color and uniform thickness (0.7-0.9mm) allows for easy identification and consistent performance in automated or manual assemblies.

Professional Applications & Engineering Value

This UHMW plastic flat washer is engineered to address common industrial challenges such as chemical exposure, electrical insulation needs, and friction-induced wear. Made from ultra-high-molecular-weight polyethylene, it provides superior chemical resistance against oils, solvents, and acids, making it ideal for chemical processing, food machinery, and automotive assemblies. The low friction coefficient reduces sticking and noise in dynamic applications, while the precise metric dimensions (3.2x8mm) ensure secure fastening with M3 screws, preventing loosening under vibration. Its off-white color aids in part identification, and the material's inherent toughness supports long-term reliability in electrical insulation and lightweight structural applications, enhancing overall system efficiency.

Specification Summary & Compliance

This flat washer features a 3.2mm inner diameter, 8mm outer diameter, and thickness of 0.7-0.9mm, designed for use with M3 metric screws and manufactured to standard flat washer dimensions. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The washer operates within a maximum temperature range of 180°F and is made from UHMW plastic, providing consistent performance in various industrial settings without additional hardness ratings.