S-90377A209 0.656" ID x 1.5" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide 18-8 Stainless Steel construction for extended service life in harsh environments
• Optimal load distribution due to precise 0.656" ID and 1.5" OD dimensions that prevent surface damage and loosening
• Enhanced durability from 18-8 stainless steel material that maintains performance under repeated stress
• Reliable dimensional stability with consistent 0.110-0.140" thickness ensuring proper fit and function
• Industry compliance assurance meeting RoHS 3 and REACH regulations for safe industrial applications
• Versatile compatibility designed specifically for 5/8" screw sizes in inch measurement systems
• Reduced maintenance requirements thanks to corrosion-resistant properties that minimize replacement frequency

Professional Applications & Engineering Value

This heavy-duty 5/8" flat washer delivers exceptional engineering value through its Black-Oxide 18-8 Stainless Steel composition, specifically engineered to address common industrial challenges. The black-oxide surface treatment enhances corrosion resistance while providing additional protection against galling and seizing in high-stress applications. With precise 0.656" ID and 1.5" OD dimensions, this flat washer ensures optimal load distribution across fastened surfaces, preventing material deformation and maintaining joint integrity in machinery, structural assemblies, and outdoor equipment. The 18-8 stainless steel material offers excellent strength-to-weight ratio, making it ideal for applications requiring both durability and corrosion resistance without compromising on performance standards.

Specification Summary & Compliance

This precision flat washer features exact dimensional specifications including 0.656" inner diameter, 1.5" outer diameter, and thickness ranging from 0.110" to 0.140", designed for 5/8" screw sizes in inch measurement systems. The product maintains strict manufacturing standards and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications worldwide.