S-96551A110 0.089" ID x 0.2" OD ASME B18.21.1; MS35333-69; NASM35333 Mil. Spec. Internal-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments
• 410 stainless steel construction provides excellent corrosion resistance and durability
• Rockwell C40-50 hardness ensures long-lasting performance under repeated loading
• Internal tooth design delivers maximum biting action and secure locking capability
• Multiple specification compliance (ASME B18.21.1, MS35333-69, NASM35333) guarantees quality and reliability
• Environmental compliance with RoHS 3 and REACH regulations for safe industrial use
• Precision dimensions (0.089" ID, 0.2" OD) ensure perfect fit for No. 2 screw applications

Professional Applications & Engineering Value

This internal tooth lock washer addresses critical vibration-induced loosening challenges in industrial assemblies. The 410 stainless steel material provides exceptional strength and corrosion resistance, making it ideal for demanding environments where chemical exposure or moisture is present. The internal tooth configuration creates superior biting action into both the fastener and bearing surface, distributing load evenly while preventing rotational movement. Engineered to meet ASME B18.21.1 and military specifications, this No. 2 tooth lock washer delivers reliable performance in automotive, aerospace, machinery, and electrical applications where vibration resistance is paramount. The precise tooth geometry ensures consistent locking force without damaging mating surfaces.

Specification Summary & Compliance

This tooth lock washer features precision dimensions with 0.089" internal diameter and 0.2" outer diameter, specifically designed for No. 2 screw size applications. Manufactured to exacting ASME B18.21.1 standards with additional compliance to MS35333-69 and NASM35333 specifications. The component is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for industrial components. The Rockwell C40-50 hardness ensures optimal performance characteristics for long-term vibration resistance in critical assemblies.