S-93650A370 0.411" ID x 1" OD Moisture-Resistant Cushioning Washers

Key Features & Benefits at a Glance

• Superior sealing performance with clear polyurethane rubber construction that prevents fluid and dust ingress in demanding environments
• Excellent temperature resistance maintains flexibility and sealing integrity across a wide operating range from -10°F to 150°F
• Optimal compression recovery with Durometer 70A hardness providing perfect balance between sealing force and material resilience
• Precision dimensional accuracy with 0.411" ID specifically engineered for 3/8" screw applications ensuring perfect fit
• Enhanced chemical and environmental resistance through high-quality polyurethane material that outperforms standard rubber compounds
• Regulatory compliance assurance with RoHS 3 and REACH compliance for international market access and environmental safety
• Visual inspection capability through clear material allowing easy verification of proper installation and alignment

Professional Applications & Engineering Value

This clear polyurethane rubber flat washer delivers exceptional engineering value in applications where both sealing performance and chemical resistance are critical. The polyurethane material provides superior durability compared to conventional rubber washers, maintaining its sealing integrity even when exposed to oils, solvents, and varying environmental conditions. With its precise 0.411" inner diameter designed specifically for 3/8" screw size applications, this flat washer ensures perfect alignment and consistent compression across the sealing surface. The Durometer 70A hardness offers optimal balance - firm enough to maintain seal under pressure yet flexible enough to accommodate surface irregularities. These industrial washers solve common challenges in machinery, automotive, and equipment assembly where reliable sealing solutions must withstand temperature fluctuations and chemical exposure while providing visible confirmation of proper installation.

Specification Summary & Compliance

This precision flat washer features exact dimensional specifications including 0.411" ID, 1" OD, and thickness range of 0.053-0.073" with inch system measurements ensuring compatibility with standard 3/8" screw applications. The washer maintains consistent performance across its specified temperature range of -10°F to 150°F with Durometer 70A hardness providing reliable compression characteristics. Manufacturing and material compliance includes full RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with current substance restrictions, ensuring environmental safety and international regulatory acceptance for industrial applications.