S-91225A112 4.3 mm ID x 9 mm OD Plastic Washers
Plastic Washers
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional heat resistance maintains structural integrity up to 250°F (121°C) for reliable performance in demanding thermal environments
- Superior electrical insulation properties prevent current leakage and short circuits in electrical assemblies
- High Rockwell M95 hardness ensures excellent dimensional stability and resistance to deformation under load
- Precision metric dimensions (4.3mm ID × 9mm OD) provide perfect fit and consistent performance with M4 fasteners
- Full regulatory compliance with RoHS 3 (2015/863/EU) and REACH standards for safe use in global markets
- Phenolic plastic construction offers excellent chemical resistance and durability in harsh industrial conditions
- Consistent 0.7-0.9mm thickness ensures uniform load distribution and reliable sealing performance
Professional Applications & Engineering Value
This M4 phenolic plastic flat washer delivers critical engineering solutions where electrical insulation and thermal stability are paramount. The phenolic plastic material provides exceptional dielectric properties, making it ideal for electrical assemblies, control panels, and electronic enclosures where current isolation is essential. With its 250°F maximum temperature rating, this metric flat washer maintains dimensional stability in high-heat environments that would compromise conventional plastic washers. The Rockwell M95 hardness ensures the washer withstands compression forces without cracking or deforming, providing reliable performance in automotive, aerospace, and industrial equipment applications where consistent spacing and insulation are critical to system longevity.
Specification Summary & Compliance
This M4 phenolic plastic flat washer features precision metric dimensions with 4.3mm inner diameter, 9mm outer diameter, and 0.7-0.9mm thickness range. Manufactured to exacting standards with Rockwell M95 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for international industrial applications. Rated for continuous service up to 250°F maximum temperature while maintaining structural and electrical properties.
