S-5185N136 0.766" ID x 1.265" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance from the split lock design that maintains tension under dynamic loads, preventing fastener loosening in high-stress applications.
• Enhanced corrosion protection with the zinc-flake coating, extending service life in harsh industrial environments.
• Exceptional mechanical durability due to Rockwell C38 hardness, ensuring the washer withstands repeated use without deformation.
• Reliable dimensional fit with a 0.766" ID and 1.265" OD, designed specifically for 3/4" screws to ensure secure fastening.
• Guaranteed performance compliance with ASME B18.21.1 standards, providing confidence in quality and interchangeability.
• Environmental and safety assurance through RoHS 3 and REACH compliance, making it suitable for regulated industries.
• Optimized for heavy-duty use with a 0.188" thickness and standard split lock type, offering robust support in mechanical assemblies.

Professional Applications & Engineering Value

This split lock washer is engineered to address critical challenges in industrial settings, such as vibration-induced fastener failure and corrosion. Made from zinc-flake-coated steel, it provides a durable barrier against moisture and chemicals, reducing maintenance needs in machinery, automotive, and construction applications. The standard split lock design and precise dimensions (0.766" ID, 1.265" OD) ensure a tight fit for 3/4" screws, delivering consistent clamping force to prevent loosening under dynamic loads. By meeting ASME B18.21.1 specifications, it offers reliability in assembly lines, heavy equipment, and other high-demand environments where safety and longevity are paramount.

Specification Summary & Compliance

This washer features an ID of 0.766", OD of 1.265", and thickness of 0.188", designed for 3/4" screw sizes with a standard split lock type. It conforms to ASME B18.21.1 standards for dimensional accuracy and performance. The material is zinc-flake-coated steel with a hardness of Rockwell C38, ensuring consistent quality. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), affirming its suitability for environmentally conscious and regulated industrial use.