S-93650A145 0.257" ID x 0.5" OD Moisture-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior chemical resistance from polyurethane rubber material, ideal for harsh industrial environments where exposure to oils, solvents, and chemicals is common.
• Excellent temperature resilience with a wide operating range from -10°F to 150°F, ensuring reliable performance in both cold and moderately hot conditions.
• Optimal sealing and vibration dampening due to Durometer 70A hardness, providing a soft yet durable barrier that prevents loosening and leakage.
• Precise dimensional fit with 0.257" ID and 0.5" OD, designed specifically for 1/4" screws to ensure easy installation and secure fastening.
• Crystal clear transparency allows for visual inspection of the assembly without removing the washer, saving time in maintenance and quality checks.
• Consistent thickness control between 0.085" and 0.101" ensures uniform pressure distribution, enhancing sealing effectiveness and load bearing.
• Full regulatory compliance with RoHS 3 and REACH standards, guaranteeing safety and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

This clear polyurethane rubber flat washer is engineered to address critical sealing and insulation challenges in demanding industrial applications. Its polyurethane rubber composition offers exceptional resistance to abrasion, chemicals, and weathering, making it suitable for machinery, automotive assemblies, and electronic enclosures where chemical-resistant sealing solutions are essential. The flat washer design, combined with a Durometer 70A hardness, provides reliable vibration dampening and load distribution, reducing the risk of fastener fatigue and fluid ingress. With a temperature range from -10°F to 150°F, it performs consistently in varied climates, while the clear appearance allows for non-intrusive monitoring. Ideal for 1/4" screw size fastenings, it ensures precise fit and long-term durability in inch system installations, minimizing downtime and maintenance costs.

Specification Summary & Compliance

This washer meets precise dimensional tolerances with an Inner Diameter of 0.257", Outer Diameter of 0.5", and Thickness ranging from 0.085" to 0.101", designed for use with 1/4" screws in inch system measurements. 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, polyurethane rubber with a Durometer 70A hardness, is manufactured to provide consistent performance across its specified temperature range of -10°F to 150°F, supporting adherence to quality and environmental standards in global markets.