S-90295A430 0.24" ID x 0.465" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, ideal for harsh environments where metal washers would degrade.
• Effective electrical insulation properties prevent galvanic corrosion and short circuits in electrical assemblies.
• Superior vibration dampening helps maintain clamp load and prevents fastener loosening under dynamic loads.
• Wide operating temperature range from -40°F to 180°F ensures reliable performance in both extreme cold and moderate heat.
• Consistent dimensional stability with a precise 0.24" ID and 0.465" OD provides a perfect fit for No. 12 screws.
• Durable and non-marring surface with a Rockwell R115 hardness protects sensitive finishes on assembled components.
• Guaranteed regulatory compliance with RoHS 3 and REACH standards for safe use in global industrial markets.

Professional Applications & Engineering Value

This Nylon Plastic Flat Washer is engineered to solve common industrial challenges where metal fasteners fall short. Its inherent non-conductive and non-corrosive properties make it indispensable in electrical enclosures, control panels, and marine applications, eliminating the risk of galvanic corrosion. The material's natural lubricity and Rockwell R115 hardness allow it to distribute load evenly under a No. 12 screw head without cracking or deforming, preventing damage to soft substrates. Its ability to perform reliably across a broad temperature range from -40°F to 180°F ensures assembly integrity in outdoor equipment, automotive components, and HVAC systems, providing long-term vibration resistance and fatigue life where thermal cycling is a concern.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an Inside Diameter (ID) of 0.24" and Outside Diameter (OD) of 0.465", designed specifically for a No. 12 screw size. The thickness tolerance is maintained between 0.010" and 0.020". It is manufactured from high-grade nylon plastic with a hardness of Rockwell R115. The product 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 industrial use.