S-91169A244 31.7 mm ID x 48.2 mm OD DIN 127B Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress applications
• Rockwell C44 hardened steel construction ensures exceptional durability and spring action
• Precision metric dimensions (31.7mm ID, 48.2mm OD) guarantee perfect fit for M30 fasteners
• DIN 127B compliance provides certified quality and interchangeability
• RoHS 3 & REACH compliance meets strict environmental regulations for industrial use
• Optimized thickness range (5.8-6.2mm) delivers consistent locking performance
• Standard split lock design offers reliable, cost-effective vibration protection

Professional Applications & Engineering Value

This M30 split lock washer delivers critical vibration resistance in demanding mechanical assemblies where loosening could cause equipment failure or safety hazards. Manufactured from Rockwell C44 hardened steel, it maintains spring tension under extreme loads and repeated stress cycles. The DIN 127B standard ensures precise dimensional accuracy and reliable performance in automotive, machinery, and heavy equipment applications. The split lock design creates continuous friction against both bearing surfaces, effectively preventing back-off in vibration-prone environments. With RoHS 3 and REACH compliance, this washer meets the strictest environmental standards while providing dependable locking security for critical metric fastener systems.

Specification Summary & Compliance

This standard split lock washer features precision dimensions: 31.7mm inner diameter, 48.2mm outer diameter, and 5.8-6.2mm thickness range. Manufactured to DIN 127B specifications with Rockwell C44 hardness for optimal spring performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide.