S-91475A342 0.628" ID x 1.073" OD ASME B18.21.1; MS35338-50 Mil. Spec. Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress applications
• Zinc yellow-chromate plating provides excellent corrosion protection for extended service life
• Rockwell C38 hardness ensures consistent spring tension and reliable locking performance
• ASME B18.21.1 compliance guarantees dimensional accuracy and interchangeability
• Standard split lock design offers easy installation and immediate spring action
• Precision-engineered dimensions (0.628" ID, 1.073" OD) ensure perfect fit for 5/8" fasteners
• Military specification MS35338-50 compliance meets rigorous industrial standards

Professional Applications & Engineering Value

This heavy-duty split lock washer delivers critical vibration resistance in demanding industrial environments where mechanical fasteners are subjected to constant stress and movement. The zinc yellow-chromate plated steel construction provides dual protection against corrosion while maintaining the necessary spring properties for reliable locking action. Engineered to ASME B18.21.1 standards, this washer solves common assembly challenges in machinery, automotive, and construction applications where vibration-induced loosening can lead to equipment failure. The standard split lock design creates continuous spring tension that compensates for thermal expansion, material relaxation, and dynamic loads, ensuring your critical connections remain secure throughout the product lifecycle.

Specification Summary & Compliance

This 5/8" split lock washer features precise dimensional specifications including 0.628" internal diameter, 1.073" outer diameter, and 0.156" thickness. Manufactured to exacting ASME B18.21.1 standards and military specification MS35338-50, it ensures proper fit and function with corresponding fasteners. The Rockwell C38 hardness provides optimal spring characteristics while the zinc yellow-chromate plating offers superior corrosion resistance. This industrial-grade component meets rigorous quality standards for dimensional accuracy, material properties, and performance reliability in mechanical fastening systems.