S-91202A230 5.4 mm ID x 9.2 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with split lock design that maintains tension under dynamic loads
• Enhanced durability with Rockwell C44 hardness rating for long service life in demanding applications
• Reliable corrosion protection through zinc-plated steel construction
• Precision dimensional accuracy with 5.4mm ID and 9.2mm OD ensuring perfect fit for M5 screws
• Industry-standard compliance with DIN 127B specifications for consistent performance
• Environmental responsibility with RoHS 3 and REACH compliance for global manufacturing
• Optimized spring action with 1.1-1.3mm thickness providing consistent locking force

Professional Applications & Engineering Value

This M5 split lock washer delivers critical vibration resistance in mechanical assemblies where loosening under stress is a primary concern. The zinc-plated steel construction provides essential corrosion protection while maintaining the Rockwell C44 hardness needed for repeated compression cycles. Engineered to DIN 127B standards, these washers offer predictable performance in automotive, machinery, and electrical enclosure applications where metric fasteners require reliable locking. The split design creates continuous spring tension that compensates for thermal expansion and vibration-induced slack, preventing costly downtime in industrial operations. Perfect for M5 screw applications demanding consistent clamping force in high-vibration environments.

Specification Summary & Compliance

This split lock washer features precise dimensions with 5.4mm inner diameter and 9.2mm outer diameter, manufactured to DIN 127B specifications for dimensional accuracy and performance. The product maintains Rockwell C44 hardness throughout its zinc-plated steel construction and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance compliance.