S-96551A360 0.141" ID x 0.295" OD ASME B18.21.1; MS35333-105; NASM35333 Mil. Spec. Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with internal teeth design that bites into mating surfaces to prevent loosening under dynamic loads
• Exceptional durability provided by bronze construction with Rockwell B90 hardness for long service life in demanding applications
• Precision fit for No. 6 screws with 0.141" ID ensuring optimal alignment and secure fastening performance
• Reliable compliance meeting ASME B18.21.1, MS35333-105, and NASM35333 specifications for quality assurance
• Optimized load distribution through 0.295" OD design that spreads clamping force effectively
• Consistent performance maintained through controlled thickness (0.017-0.021") for uniform locking pressure
• Corrosion-resistant properties of bronze material suitable for various industrial environments

Professional Applications & Engineering Value

This bronze tooth lock washer delivers critical engineering value by solving persistent vibration-induced loosening in mechanical assemblies. The internal tooth location creates multiple biting points that dig into both the fastener and surface, maintaining clamp load where standard washers fail. Manufactured from bronze material with Rockwell B90 hardness, it provides excellent wear resistance while preventing galvanic corrosion when used with dissimilar metals. The precise 0.141" ID ensures perfect alignment with No. 6 screws, while the 0.295" OD distributes load effectively across wider surfaces. This ASME B18.21.1 compliant solution is particularly valuable in aerospace, automotive, and heavy machinery applications where vibration resistance and reliable secure fastening are non-negotiable requirements for operational safety.

Specification Summary & Compliance

This precision tooth lock washer features inch system dimensions with 0.141" internal diameter, 0.295" outer diameter, and controlled thickness between 0.017-0.021". The bronze construction meets Rockwell B90 hardness specifications, ensuring consistent mechanical properties. Manufactured to exacting standards, this component is fully compliant with ASME B18.21.1, MS35333-105, and NASM35333 specifications, guaranteeing interchangeability and performance reliability across industrial applications. The internal tooth configuration provides optimal locking action for No. 6 screw sizes in accordance with established engineering standards.