S-97775A260 0.195" ID x 0.41" OD ASME B18.21.1; MS35335-60 Mil. Spec. External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external teeth that bite into mating surfaces, preventing fastener loosening under dynamic loads
• Exceptional durability with 410 Stainless Steel construction providing excellent corrosion resistance and long service life
• Precision dimensional control with 0.195" ID and 0.41" OD ensuring perfect fit for No. 10 screws in inch-system applications
• Enhanced load distribution with Rockwell C40 hardness maintaining tooth integrity under high clamping pressures
• Industry-standard compliance meeting ASME B18.21.1 and MS35335-60 specifications for reliable performance
• Environmental responsibility with RoHS 3 and REACH compliance, free from restricted hazardous substances
• Consistent thickness control between 0.020-0.025" for uniform clamping force and reliable joint security

Professional Applications & Engineering Value

This No. 10 external tooth lock washer delivers critical vibration-resistant performance in demanding industrial environments where fastener security is paramount. Engineered from 410 Stainless Steel, the washer provides excellent corrosion resistance while maintaining structural integrity under continuous stress. The strategically positioned external teeth create positive locking action by embedding into both the fastener head and base material, effectively combating loosening caused by vibration, thermal cycling, and dynamic loading. This makes the component ideal for heavy machinery, automotive assemblies, electrical enclosures, and industrial equipment where reliable joint integrity cannot be compromised. The precise dimensional specifications ensure consistent performance across production runs, reducing maintenance intervals and preventing costly downtime.

Specification Summary & Compliance

This precision tooth lock washer features inch-system dimensions with 0.195" internal diameter and 0.41" outer diameter, specifically designed for No. 10 screw sizes. Manufactured to ASME B18.21.1 and MS35335-60 specifications, the washer maintains strict dimensional tolerances and performance requirements. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. With Rockwell C40 hardness and controlled thickness between 0.020-0.025", this washer delivers consistent locking performance in critical assembly applications.