S-91101A038 1.024" ID x 1.656" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through the split design that maintains constant spring tension under dynamic loads
• Exceptional durability with Rockwell C38 hardness rating ensuring long service life in demanding applications
• Precise dimensional compatibility with 1" fasteners thanks to exact 1.024" ID and 1.656" OD specifications
• Reliable performance assurance through compliance with ASME B18.21.1 manufacturing standards
• Enhanced safety and reliability with 0.25" thickness providing optimal spring force and load distribution
• Environmentally responsible manufacturing meeting RoHS 3 and REACH compliance for global supply chain integration
• Reduced maintenance requirements through high-quality steel construction resistant to corrosion and wear

Professional Applications & Engineering Value

This steel split lock washer delivers critical vibration resistance in industrial environments where mechanical fastening integrity is paramount. The split lock washer design creates continuous spring action that compensates for thermal expansion, vibration-induced loosening, and material relaxation. Engineered to ASME B18.21.1 standards, this 1 inch washer provides reliable performance in heavy machinery, automotive assemblies, construction equipment, and manufacturing systems. The Rockwell C38 hardness ensures the washer maintains its spring properties under repeated loading cycles, while the precise 1.024" ID and 1.656" OD dimensions guarantee proper fit with standard 1" fasteners. This combination of material strength and dimensional accuracy addresses common failure points in industrial applications where vibration and dynamic loads compromise fastener integrity.

Specification Summary & Compliance

This standard split lock washer features precise inch dimensions with 1.024" internal diameter, 1.656" external diameter, and 0.25" thickness. Manufactured in compliance with ASME B18.21.1 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) compliance with the latest SVHC list (01/17/2023, 233 substances). The Rockwell C38 hardness rating ensures consistent mechanical properties and reliable performance in industrial fastening applications.