S-90391A154 0.679" ID x 1.328" OD ANSI/ABMA 8.2 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
• Enhanced locking security with external tooth configuration that bites into mating surfaces to prevent rotation
• Optimal load distribution with chamfered bearing nut face style for even pressure application
• Precision dimensional compatibility with 0.664"-32 screw sizes and 1.328" OD for reliable fit in inch-system applications
• Long-term reliability with durable steel construction that withstands industrial environments
• Regulatory compliance assurance meeting ANSI/ABMA 8.2 standards for consistent performance
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable operations

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration-resistant performance in demanding industrial settings where fastener loosening can compromise system integrity. The conical shape creates continuous spring tension that compensates for material relaxation and thermal cycling, while the external tooth configuration provides aggressive biting action into both the bearing surface and nut face. Manufactured from high-grade steel, this washer maintains its mechanical properties under heavy dynamic loads common in machinery, automotive, and heavy equipment applications. The precise 0.664"-32 thread compatibility ensures perfect mating with standard fasteners, eliminating play and maintaining clamp force in vibration-prone assemblies. Engineered to ANSI/ABMA 8.2 specifications, this component delivers predictable performance that reduces maintenance intervals and prevents costly downtime in critical fastening systems.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.679" ID, 1.328" OD, and 0.195" overall height with external tooth placement. Manufactured to ANSI/ABMA 8.2 standards for consistent quality and performance in inch-system applications. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Designed specifically for chamfered bearing nut interfaces with 0.664"-32 screw sizes, providing reliable fastening solutions for industrial equipment and machinery requiring vibration-resistant locking washers.