S-99872A112 0.115" ID x 0.25" OD Plastic Washers

Key Features & Benefits at a Glance

• Enhanced Durability & Strength: Glass-filled nylon construction provides superior resistance to wear and impact compared to standard plastic washers, extending service life in demanding applications.
• Excellent Chemical & Moisture Resistance: The nylon plastic material inherently resists a wide range of chemicals, oils, and moisture, preventing degradation and ensuring reliable performance.
• Wide Operating Temperature Range: Withstands temperatures from -20°F to 230°F, making it suitable for environments with significant thermal fluctuations.
• Precise Fit for No. 4 Screws: The 0.115" ID ensures a secure and accurate fit on No. 4 screw sizes, preventing loosening and improving assembly integrity.
• Optimal Load Distribution: The 0.25" OD and flat design provide a larger bearing surface, effectively distributing clamp load and protecting sensitive surfaces.
• Consistent Hardness & Dimensional Stability: Rockwell M96 hardness guarantees consistent performance and resistance to deformation under load.
• Global Regulatory Compliance: Meets RoHS 3 and REACH standards, ensuring they are safe for use in regulated industries and international markets.

Professional Applications & Engineering Value

This glass-filled nylon plastic flat washer is engineered to solve common challenges in electrical, automotive, and consumer goods assembly. Its off-white color and non-conductive, non-corrosive properties make it ideal for insulating applications and use in corrosive environments where metal washers would fail. The material's low moisture absorption and high Rockwell M96 hardness prevent swelling and maintain dimensional stability, ensuring a consistent clamp force and preventing joint failure. Designed specifically for a No. 4 screw size with precise 0.115" ID and 0.25" OD dimensions, it provides reliable vibration resistance and surface protection in tight spaces, delivering long-term value by reducing maintenance and replacement costs.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an Inside Diameter (ID) of 0.115", Outside Diameter (OD) of 0.25", and a Thickness of 0.057-0.067". It is manufactured from glass-filled nylon plastic with a Rockwell M96 hardness rating. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and safe for industrial use.