S-93493A331 31 mm ID x 56 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional heat resistance - maintains structural integrity at temperatures up to 280°F for reliable performance in high-temperature industrial environments
• Superior durability - fiberglass construction with Rockwell M115 hardness ensures long-lasting performance under mechanical stress
• Precise dimensional accuracy - 31mm ID and 56mm OD with 1.4-1.8mm thickness provides perfect fit for M30 screws in metric applications
• Enhanced chemical resistance - fiberglass material offers excellent resistance to corrosion and chemical exposure
• Environmental compliance - meets RoHS 3 and REACH standards for safe industrial use and environmental protection
• Easy identification - light green color allows for quick visual recognition in assembly and maintenance operations
• Reliable insulation properties - fiberglass construction provides electrical and thermal insulation for sensitive applications

Professional Applications & Engineering Value

This M30 metric flat washer delivers critical engineering solutions for demanding industrial applications where temperature extremes and chemical exposure are common challenges. The fiberglass construction provides exceptional thermal stability, maintaining dimensional integrity and mechanical properties at temperatures reaching 280°F - significantly higher than standard polymer washers. The Rockwell M115 hardness ensures reliable load distribution and vibration resistance in heavy machinery, automotive, and electrical equipment applications. The precise 31mm inner diameter and 56mm outer diameter create optimal bearing surface for M30 fasteners, preventing loosening and surface damage in high-vibration environments. These flat washers are particularly valuable in electrical applications where their insulating properties prevent galvanic corrosion and current leakage.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications with 31mm inner diameter, 56mm outer diameter, and 1.4-1.8mm thickness range, engineered for perfect compatibility with M30 screw sizes. Manufactured from premium fiberglass material with Rockwell M115 hardness rating, the washer delivers consistent performance across its operational temperature range up to 280°F. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe industrial use and environmental responsibility. The light green color provides immediate visual identification while the fiberglass construction meets industry standards for high-temperature and electrical insulation applications.