S-96982A139 5.1 mm ID x 9.2 mm OD DIN 128A Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with curved spring design that maintains constant tension under dynamic loads
• Enhanced corrosion protection through zinc yellow-chromate plating for extended service life in harsh environments
• Exceptional durability with Rockwell C44 hardness steel construction that withstands repeated compression cycles
• Precise dimensional compatibility with 5.1mm ID and 9.2mm OD ensuring perfect fit for M5 fasteners
• Reliable locking performance that prevents fastener loosening in high-vibration industrial applications
• Standardized quality assurance through DIN 128A compliance for consistent performance and interchangeability
• Optimized spring action with 1.5mm overall height providing maximum deflection for secure fastening

Professional Applications & Engineering Value

This M5 split lock washer delivers critical engineering solutions for industrial applications where vibration-induced fastener failure is a major concern. The curved spring design creates continuous radial pressure that compensates for thermal expansion, material relaxation, and mechanical vibrations. Manufactured from zinc yellow-chromate plated steel, these washers provide excellent corrosion resistance in demanding environments including manufacturing equipment, automotive assemblies, and electrical enclosures. The Rockwell C44 hardness ensures the washer maintains its spring properties through countless compression cycles without taking a permanent set. For maintenance teams and design engineers, this DIN 128A compliant washer offers predictable performance and reliable locking action that reduces maintenance frequency and prevents costly downtime from fastener-related failures.

Specification Summary & Compliance

This split lock washer features precise metric dimensions with 5.1mm inner diameter, 9.2mm outer diameter, and 0.9mm thickness, engineered for M5 screw applications. The product strictly conforms to DIN 128A standards for dimensional accuracy and performance requirements. Manufactured from high-grade steel with zinc yellow-chromate plating for superior corrosion protection, these washers meet industrial specifications for material quality and surface treatment. The Rockwell C44 hardness rating ensures consistent spring performance and durability. Compliant with RoHS and REACH environmental directives, this washer is suitable for various industrial applications requiring reliable vibration-resistant fastening solutions.