S-5185N117 0.641" ID x 1.073" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial applications
• Black-oxide steel construction provides excellent corrosion resistance and durability
• Rockwell C38 hardness rating ensures long-term performance under heavy loads
• Precision 0.641" ID and 1.073" OD dimensions guarantee perfect fit for 5/8" fasteners
• ASME B18.21.1 compliance delivers consistent quality and engineering reliability
• RoHS 3 and REACH compliance meets stringent environmental and safety standards
• Standard split lock design offers reliable spring action and easy installation

Professional Applications & Engineering Value

This heavy-duty split lock washer is engineered to solve critical vibration-related challenges in industrial settings. The black-oxide steel material provides superior corrosion resistance while maintaining the necessary spring tension to prevent fastener loosening. With its Rockwell C38 hardness, this washer maintains structural integrity under continuous stress, making it ideal for machinery, automotive assemblies, and construction equipment where vibration resistance is paramount. The standard split lock washer type ensures reliable performance in inch-system applications, while the precise 0.641" ID and 1.073" OD dimensions guarantee proper fitment for 5/8" fasteners, reducing installation time and preventing assembly errors in manufacturing and maintenance operations.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications with 0.641" inner diameter, 1.073" outer diameter, and 0.156" thickness, engineered for 5/8" screw applications. Manufactured to ASME B18.21.1 standards for consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety requirements for industrial components.