S-90295A460 0.34" ID x 0.74" OD Plastic Washers

Key Features & Benefits at a Glance

• Excellent temperature resistance ensures reliable performance in extreme environments from -40°F to 180°F
• Superior durability with Rockwell R115 hardness for long-lasting load distribution and vibration resistance
• Precise dimensional fit with 0.34" ID and 0.74" OD designed specifically for 5/16" screw applications
• Chemical and corrosion resistance inherent to nylon plastic material prevents degradation in harsh conditions
• Electrical insulation properties make it ideal for applications requiring non-conductive components
• Environmental compliance with RoHS 3 (2015/863/EU) standards for restricted substance control
• Consistent thickness between 0.057-0.067" ensures uniform pressure distribution and secure fastening

Professional Applications & Engineering Value

This nylon plastic flat washer delivers exceptional engineering value across multiple industrial sectors where temperature extremes, chemical exposure, and electrical insulation are critical concerns. The nylon material provides inherent resistance to fuels, solvents, and oils while maintaining dimensional stability across its wide operating range. In electrical enclosures, automotive assemblies, and outdoor equipment applications, these flat washers prevent galvanic corrosion between dissimilar metals and serve as reliable insulating barriers. The precise inch system measurements and 5/16" screw size compatibility ensure easy integration into existing fastener systems, while the temperature resistance from -40°F to 180°F makes them suitable for both cryogenic and moderate heat environments without compromising performance or structural integrity.

Specification Summary & Compliance

This flat washer features precise inch system dimensions with 0.34" internal diameter and 0.74" outer diameter, specifically engineered for 5/16" screw applications. The thickness is maintained between 0.057-0.067" for consistent performance. Manufactured from nylon plastic with Rockwell R115 hardness rating, it complies with RoHS 3 (2015/863/EU) standards for environmental safety and restricted substances. The washer maintains structural integrity across its specified temperature range of -40°F to 180°F, making it suitable for various industrial applications requiring reliable temperature-resistant performance.