S-5185N119 0.894" ID x 1.459" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior Locking Action: The split design provides continuous spring tension to prevent screws from loosening under vibration and dynamic loads.
• Enhanced Durability & Strength: Made from black-oxide steel with a Rockwell C38 hardness for excellent resistance to wear and deformation in demanding applications.
• Effective Corrosion Resistance: The black-oxide surface finish offers a protective layer, extending the washer's service life in various industrial environments.
• Precision Fit for 7/8" Screws: With an exact 0.894" ID and 1.459" OD, this washer ensures a secure fit and optimal load distribution.
• Guaranteed Reliability & Consistency: Manufactured to meet ASME B18.21.1 standards, ensuring dimensional accuracy and reliable performance.
• Environmental & Regulatory Compliance: Compliant with RoHS 3 and REACH regulations, making them safe for use in regulated industries.
• Versatile Industrial Use: The standard split lock type and robust construction make it suitable for a wide range of heavy-duty mechanical assemblies.

Professional Applications & Engineering Value

This split lock washer is engineered to solve critical loosening issues in industrial and mechanical fastening systems. The black-oxide steel construction, combined with Rockwell C38 hardness, ensures the washer maintains its spring function and resists corrosion, even in harsh conditions. Its precise internal diameter of 0.894" is tailored for 7/8" screws, providing a snug fit that prevents misalignment and distributes load effectively. By complying with the ASME B18.21.1 standard, it delivers consistent locking performance, reducing maintenance needs and enhancing the safety and longevity of assemblies in machinery, automotive, and construction equipment.

Specification Summary & Compliance

This washer features an ID of 0.894", OD of 1.459", and a thickness of 0.219", designed for use with 7/8" screws. It is manufactured as a Standard split lock washer from black-oxide steel with a hardness of Rockwell C38. The product conforms to the ASME B18.21.1 specification for dimensional and performance standards. It is also RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring it meets current environmental and safety regulations for hazardous substances.