S-91131A080 Male and Female Leveling Washers

Key Features & Benefits at a Glance

• ±2° angular misalignment correction compensates for uneven surfaces, preventing bolt stress and ensuring secure fastening in demanding applications
• Black-oxide steel construction provides excellent corrosion resistance and durability for extended service life in harsh industrial environments
• Rockwell C25 hardness rating delivers superior strength and wear resistance, maintaining structural integrity under heavy loads
• Precision-engineered spherical design with 0.656" ID and 1.375" OD ensures optimal load distribution across contact surfaces
• Compatible with replacement male washers for easy maintenance and system integration in existing assemblies
• Standard inch measurements facilitate straightforward installation and replacement in North American industrial equipment
• Environmental compliance assurance meets RoHS 3 and REACH standards for responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

This 5/8" spherical washer addresses critical engineering challenges in heavy machinery, construction equipment, and industrial assembly lines where surface irregularities cause angular misalignment. The black-oxide steel material provides essential corrosion protection while the spherical geometry enables ±2° correction capability, distributing load forces evenly to prevent premature fastener failure. Engineered with Rockwell C25 hardness, these washers maintain dimensional stability under extreme pressure, making them ideal for structural applications requiring reliable angular misalignment correction. The precision-ground surfaces ensure consistent performance in automotive suspensions, mining equipment, and agricultural machinery where vibration resistance and long-term durability are paramount.

Specification Summary & Compliance

Manufactured to exacting dimensional standards with 0.656" inner diameter and 1.375" outer diameter, this spherical washer maintains precise Class 2A thread compatibility for 5/8" fasteners. The black-oxide surface treatment meets industrial corrosion resistance requirements while the spherical radius of 1.75" ensures proper mating with corresponding components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and unrestricted use across global markets, supported by documented material traceability and quality control protocols.