S-95584A203 0.168" ID x 0.381" OD ASME B18.21.1 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design prevents fastener loosening in high-stress applications
• Excellent corrosion resistance with 18-8 stainless steel construction ensures long-term durability in harsh environments
• Precision dimensional control with 0.168" ID and 0.381" OD provides perfect fit for No. 8 screw applications
• Reliable locking performance maintained through consistent 0.018-0.023" thickness across all washers
• Industry-standard compliance with ASME B18.21.1 ensures consistent quality and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH supports sustainable manufacturing practices
• Optimal tooth engagement with external tooth location design maximizes surface contact for enhanced locking security

Professional Applications & Engineering Value

This external tooth lock washer delivers exceptional engineering value in applications where vibration resistance is critical. The 18-8 stainless steel construction provides reliable corrosion resistance for demanding industrial environments, while the precisely engineered external teeth create multiple biting points that prevent rotational loosening under dynamic loads. Designed specifically for No. 8 screw applications, this washer solves common assembly challenges in machinery, automotive, and electrical equipment where constant vibration can compromise joint integrity. The tooth configuration ensures maximum surface contact while minimizing damage to mating surfaces, making it ideal for repeated disassembly and reassembly operations in maintenance-intensive applications.

Specification Summary & Compliance

This tooth lock washer features precise dimensional specifications including 0.168" internal diameter, 0.381" outer diameter, and thickness ranging from 0.018" to 0.023" for consistent performance. Manufactured to ASME B18.21.1 standards for dimensional accuracy and mechanical properties, this component ensures reliable performance in inch system applications. The washer is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest requirements for hazardous substance restrictions and chemical safety in industrial applications.