S-91525A271 0.219" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance for demanding environments, thanks to premium 316 stainless steel construction
• Precise fit for No. 10 screws with a 0.219" inner diameter, ensuring secure fastening and load distribution
• Enhanced surface coverage and stability from the large 1.5" outer diameter, reducing surface pressure and preventing embedment
• Versatile thickness range (0.036-0.060") allows for flexibility in assembly and compensation for slight tolerances
• Full compliance with RoHS 3 and REACH regulations, ensuring safety and environmental responsibility in industrial and marine applications
• Durable, long-lasting performance in harsh conditions, minimizing maintenance and replacement costs
• Broad compatibility with inch-system fasteners, ideal for various mechanical and structural assemblies

Professional Applications & Engineering Value

This 316 stainless steel flat washer is engineered to address critical challenges in corrosive and high-stress environments, such as marine, chemical processing, and outdoor industrial settings. Its corrosion-resistant properties stem from the high-grade 316 material, which contains molybdenum for enhanced protection against chlorides and acidic conditions. The precise inner diameter of 0.219" ensures a snug fit for No. 10 screws, preventing loosening under vibration and distributing loads evenly to protect sensitive surfaces. With a large outer diameter of 1.5", it minimizes point loading and reduces the risk of material fatigue, making it a reliable choice for applications requiring durability and regulatory adherence, including equipment exposed to saltwater or harsh chemicals. This washer delivers consistent performance, supporting long-term structural integrity and compliance with industry standards.

Specification Summary & Compliance

This flat washer features an inner diameter of 0.219", outer diameter of 1.5", and thickness range of 0.036-0.060", designed specifically for No. 10 screw sizes in inch measurements. It is manufactured from 316 stainless steel, offering excellent mechanical properties without a specified hardness rating. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial and marine applications, supporting safe and sustainable procurement practices.