S-95647A209 0.14" ID x 0.438" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional chemical resistance prevents degradation from oils, solvents, and many industrial chemicals, extending service life in harsh environments
• Maintains dimensional stability across a wide temperature range (-40°F to 180°F), ensuring consistent performance and preventing loosening
• High Durometer 83D hardness provides superior load distribution and resistance to deformation under pressure
• Low friction and self-lubricating properties of Delrin® Acetal reduce wear on components and simplify assembly
• RoHS 3 and REACH compliance ensures environmental safety and meets stringent international regulatory standards for industrial use
• Precise 0.14" ID and 0.438" OD dimensions guarantee a perfect fit for No. 5 screws, preventing misalignment and ensuring secure fastening
• Non-conductive and corrosion-proof properties make it ideal for electrical applications and environments prone to moisture

Professional Applications & Engineering Value

These Delrin® Acetal Plastic Flat Washers are engineered to solve common industrial challenges where metal washers fail. The high-performance acetal material offers excellent dimensional stability, resisting swelling or shrinking even with temperature fluctuations from -40°F to 180°F. This makes them ideal for precision assemblies in automotive, electronics, and food processing equipment, where consistent thickness and fit are critical. Their inherent chemical resistance protects against corrosive substances, while the low moisture absorption prevents degradation in humid conditions. The flat washer design for No. 5 screws ensures even load distribution, reducing stress concentrations and preventing surface damage to sensitive materials, thereby extending the lifespan of the entire assembly.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an Inside Diameter of 0.14" and Outside Diameter of 0.438", designed specifically for No. 5 screw applications. The thickness is manufactured to a precision range of 0.054-0.070". The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for various industrial and commercial uses. Manufactured from genuine Delrin® Acetal Plastic with a consistent Durometer 83D hardness, it meets rigorous quality standards for material performance and dimensional accuracy.