S-90391A173 3.8" ID x 5.219" 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 loosening
• Precision dimensional compatibility with 3.730"-12 screw sizes and chamfered bearing nut faces for seamless integration
• Durable steel construction provides reliable performance in demanding industrial environments
• Standardized compliance with ANSI/ABMA 8.2 ensures consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance for sustainable procurement
• Optimized load distribution from conical shape that compensates for thermal expansion and material relaxation

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration damping and anti-loosening performance in heavy machinery, construction equipment, and industrial assemblies where dynamic loads threaten joint integrity. The conical shape creates continuous spring tension that compensates for bolt stretch and material settlement, while the external tooth design provides positive mechanical locking by embedding into both the nut and work surface. Manufactured from high-grade steel with precise 3.8" ID and 5.219" OD dimensions, this washer maintains reliable performance in applications requiring ANSI/ABMA 8.2 compliance for bearing nut systems. The chamfered bearing nut face compatibility ensures proper seating and load distribution, making it ideal for critical connections in vibrating environments where traditional flat washers would fail.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 3.8" internal diameter, 5.219" outer diameter, and 0.100" thickness with external tooth configuration. Manufactured to meet ANSI/ABMA 8.2 standards for bearing nut applications, the washer ensures dimensional accuracy and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting responsible manufacturing practices and global supply chain requirements.