S-91475A376 1.504" ID x 2.419" OD ASME B18.21.1; MS35338-57 Mil. Spec. Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design that maintains constant spring tension under dynamic loads
• Exceptional corrosion protection with zinc yellow-chromate plating that withstands harsh industrial environments
• Optimized for 1 1/2" screw applications with precise 1.504" ID and 2.419" OD dimensions ensuring perfect fit
• Enhanced durability and load distribution from 0.375" thickness and Rockwell C38 hardness rating
• Reliable performance compliance meeting both ASME B18.21.1 and MS35338-57 industrial standards
• Long-term fastener security through the standard split lock design that prevents loosening in high-vibration applications
• Heavy-duty construction using plated steel material for maximum strength in demanding mechanical assemblies

Professional Applications & Engineering Value

This split lock washer delivers critical vibration-resistant performance in heavy machinery, construction equipment, and industrial assembly applications where fastener security is paramount. The zinc yellow-chromate plated steel construction provides dual protection against corrosion and wear, while the Rockwell C38 hardness ensures the washer maintains its spring tension under extreme loads. Engineered specifically for 1 1/2" screw applications, the precise dimensional tolerances prevent misalignment and ensure consistent clamping force. The split lock design creates continuous spring action that compensates for thermal expansion, vibration-induced loosening, and material relaxation - solving common industrial fastening failures in high-stress environments from manufacturing plants to heavy equipment operations.

Specification Summary & Compliance

This heavy-duty split lock washer features precise inch system dimensions with 1.504" ID, 2.419" OD, and 0.375" thickness, manufactured to ASME B18.21.1 and MS35338-57 specifications. The standard split lock washer type ensures consistent performance across industrial applications, with material hardness maintained at Rockwell C38 for reliable spring tension and load distribution. The zinc yellow-chromate plating provides corrosion resistance while maintaining compliance with industrial fastener standards for vibration-resistant applications.