S-97775A537 0.384" ID x 0.694" OD ASME B18.21.1; MS35335-91 Mil. Spec. External-Tooth Lock Washers
Mil. Spec. External-Tooth Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through external tooth design that bites into mating surfaces for reliable locking
- Excellent corrosion resistance from bronze construction, ideal for harsh industrial environments
- Precise dimensional fit with 0.384" ID specifically engineered for 3/8" screw applications
- Enhanced load distribution with 0.694" OD providing greater surface contact area
- Consistent performance meeting ASME B18.21.1 and MS35335-91 specifications for quality assurance
- Durable construction with controlled thickness (0.032-0.040") ensuring reliable service life
- Wide compatibility with inch system fasteners commonly used in industrial applications
Professional Applications & Engineering Value
These bronze tooth lock washers deliver exceptional engineering value in applications where vibration-induced loosening poses significant operational risks. The external tooth configuration creates multiple biting points that dig into both the fastener head and base material, maintaining clamp force even under severe dynamic loads. Made from bronze material, these washers offer natural corrosion resistance without requiring additional plating or coatings, making them ideal for marine, chemical processing, and outdoor industrial equipment. The precise 3/8" screw size compatibility ensures perfect fitment in machinery assemblies, electrical enclosures, and structural frameworks where reliable vibration-resistant fastening is critical to operational safety and maintenance reduction.
Specification Summary & Compliance
This bronze external tooth lock washer features precise inch system dimensions including 0.384" inner diameter, 0.694" outer diameter, and controlled thickness between 0.032-0.040". The product fully complies with ASME B18.21.1 standards for tooth lock washers and military specification MS35335-91, ensuring dimensional accuracy and performance reliability. Manufactured to industrial fastener specifications with external tooth location for optimal locking performance in standard inch system applications.
