S-91131A201 Male and Female Leveling Washers

Key Features & Benefits at a Glance

• 3° angular misalignment compensation ensures proper load distribution and prevents premature fastener failure in uneven mounting applications
• Black-oxide steel construction provides excellent corrosion resistance and durability in demanding industrial environments
• Rockwell C25 hardness rating delivers superior mechanical strength and long-term wear resistance under heavy loads
• Precision 0.5" female ID with 1.000" OD dimensions guarantees perfect fitment for 7/16" screw applications and reliable performance
• 1.5" radius spherical design enables smooth articulation and consistent contact surface across the full correction range
• Compatible with replacement male washers offers flexible system integration and maintenance convenience
• Dual regulatory compliance meets RoHS 3 and REACH standards for global industrial applications and environmental safety

Professional Applications & Engineering Value

This spherical washer addresses critical alignment challenges in heavy machinery, structural steel connections, and equipment mounting systems where surface irregularities can compromise joint integrity. The black-oxide steel material combined with Rockwell C25 hardness provides exceptional resistance to deformation under static and dynamic loads, while the precisely engineered 1.5" radius and 3° correction capability ensure uniform bearing pressure distribution. Engineering teams specify these angular compensation washers for applications requiring reliable misalignment accommodation without sacrificing mechanical strength or corrosion protection, making them ideal for construction equipment, industrial machinery, and infrastructure projects where vibration and thermal cycling are constant factors.

Specification Summary & Compliance

This inch-system spherical washer maintains precise dimensional tolerances with female ID of 0.5" and OD of 1.000", designed specifically for 7/16" screw applications. The component features a consistent 1.5" radius across both male and female surfaces and thickness ranging from 0.297" to 0.327". Manufacturing complies with industry standards for spherical washers and carries full RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance as of June 14, 2023, ensuring adherence to global environmental and safety regulations for industrial components.