S-91102A041 1.534" ID x 2.419" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with split lock design to prevent fastener loosening in high-stress industrial environments
• Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh conditions
• Exceptional hardness rating of Rockwell C38 ensures consistent performance under heavy loads and repeated use
• Precise dimensional compatibility with 1 1/2" screws for reliable fit and optimal locking performance
• Industry-standard compliance with ASME B18.21.1 specifications for guaranteed quality and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH standards for safe use across global markets
• Robust construction with 0.375" thickness providing substantial bearing surface for secure fastening applications

Professional Applications & Engineering Value

This split lock washer delivers critical engineering solutions for industrial applications where vibration-induced fastener failure poses significant operational risks. The zinc-plated steel construction provides essential corrosion resistance while maintaining the mechanical properties required for demanding environments. Engineered to ASME B18.21.1 standards, this washer ensures reliable performance in heavy machinery, construction equipment, and manufacturing systems where constant motion and stress would compromise ordinary fasteners. The split lock design creates continuous spring tension against both the bearing surface and fastener head, effectively resisting rotational loosening under dynamic loads. This makes it particularly valuable for industrial applications involving motors, pumps, conveyors, and other equipment where maintenance downtime must be minimized through dependable vibration resistance.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications with 1.534" ID, 2.419" OD, and 0.375" thickness, manufactured to ASME B18.21.1 standards for consistent quality and performance. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for use with 1 1/2" screws in inch measurement systems, this standard lock washer provides reliable fastening solutions across various industrial sectors.