S-90295A455 0.281" ID x 0.734" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent corrosion and chemical resistance due to nylon plastic construction, ideal for harsh industrial environments
• Reliable electrical insulation and non-conductive properties for enhanced safety in electrical applications
• Durable performance with Rockwell R115 hardness, providing long-lasting wear resistance and structural integrity
• Wide operating temperature range from -40°F to 180°F, ensuring consistent performance in varied thermal conditions
• Precise dimensional fit with 1/4" screw size compatibility, 0.281" ID, and 0.734" OD for secure fastening
• Guaranteed regulatory compliance with RoHS 3 and REACH standards, meeting strict environmental and safety requirements
• Versatile thickness range of 0.054-0.074" for optimal load distribution and vibration dampening

Professional Applications & Engineering Value

This nylon plastic flat washer is engineered to address common industrial challenges such as galvanic corrosion, electrical short circuits, and chemical degradation. Its non-conductive nature makes it indispensable in electrical assemblies and electronic enclosures, preventing current leakage. The material's inherent chemical resistance ensures longevity in applications exposed to solvents, oils, and moisture, reducing maintenance frequency. With a temperature range from -40°F to 180°F, it performs reliably in both freezing outdoor settings and moderately heated machinery, providing a consistent seal and load-bearing surface. The precise 1/4" screw size compatibility and flat profile offer easy installation and effective vibration resistance in industrial washers applications, from automotive to HVAC systems.

Specification Summary & Compliance

This flat washer conforms to standard inch system dimensions with an Inside Diameter (ID) of 0.281", Outside Diameter (OD) of 0.734", and a thickness range of 0.054-0.074" for precise fit and function. It is manufactured to meet general industry tolerances for flat washers and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and health safety standards for industrial components.