S-93650A228 0.53" ID x 1.375" OD Moisture-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior Sealing Performance: Made from clear polyurethane rubber to create reliable, long-lasting seals that prevent leakage in industrial applications.
• Excellent Vibration Dampening: Absorbs and reduces vibrations, protecting your equipment from wear and extending component lifespan.
• Wide Temperature Resilience: Maintains integrity across a broad range from -10°F to 150°F, ensuring consistent performance in varying environmental conditions.
• Precision Fit for 1/2" Screws: 0.53" ID and 1.375" OD provide an exact match, preventing misalignment and ensuring secure fastening.
• Optimal Flexibility & Durability: Durometer 70A hardness offers the perfect balance of softness for sealing and firmness for durability under load.
• Transparent Design for Easy Inspection: Clear material allows visual monitoring of the washer and underlying components without disassembly.
• Compliant with Global Safety Standards: Meets RoHS 3 and REACH regulations, ensuring safe use in regulated industrial environments.

Professional Applications & Engineering Value

This clear polyurethane rubber flat washer is engineered to address common industrial challenges such as fluid leakage, component fatigue from vibration, and thermal expansion issues. The polyurethane rubber material provides exceptional elasticity and recovery, creating a tight seal that compensates for surface irregularities and prevents loosening under dynamic loads. Its Durometer 70A hardness ensures it remains flexible enough to conform to mating surfaces while resisting compression set. Ideal for use in machinery, automotive assemblies, and electrical enclosures, this flat washer effectively isolates vibrations and maintains seal integrity across a temperature range from -10°F to 150°F. The clear composition allows for quick visual checks during maintenance, reducing downtime. These features make it a reliable choice for industrial washers requiring consistent performance in demanding conditions.

Specification Summary & Compliance

This washer features precise inch system dimensions: 0.53" inner diameter (ID) and 1.375" outer diameter (OD) with a thickness between 0.085" and 0.101", designed specifically for 1/2" screw size. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use. The material's Durometer 70A hardness and temperature resistance from -10°F to 150°F are verified to meet performance expectations in standard applications.