S-91235A316 5.3 mm ID x 11 mm OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress environments, ensuring long-term joint integrity
• 17-7 PH stainless steel construction provides excellent corrosion resistance and maintains performance in harsh industrial conditions
• Rockwell C38 hardness rating delivers exceptional durability and spring retention under repeated loading cycles
• Precision M5 compatibility with 5.3mm ID ensures perfect fit and optimal locking force distribution
• Optimized dimensions (11mm OD, 0.9mm thickness, 1.4mm height) provide reliable performance without compromising space constraints
• Full regulatory compliance with RoHS 3 and REACH standards meets stringent industrial and environmental requirements
• Consistent spring action maintains clamping force through thermal cycling and dynamic loading conditions

Professional Applications & Engineering Value

This M5 spring lock washer addresses critical vibration-induced fastener failure in demanding applications. The 17-7 PH stainless steel material provides exceptional stress corrosion cracking resistance while maintaining Rockwell C38 hardness for reliable spring performance. Engineered for industrial washers applications where constant motion and thermal cycling compromise standard fasteners, the unique spring lock design creates continuous tension that counters loosening forces. The precise 5.3mm ID ensures proper seating on M5 fasteners while the 11mm OD distributes load effectively. Ideal for vibration resistant requirements in machinery, automotive assemblies, and electrical enclosures, this washer maintains joint integrity where safety and reliability are paramount.

Specification Summary & Compliance

This spring lock washer features precision dimensions: 5.3mm internal diameter, 11mm outer diameter, 0.9mm thickness, and 1.4mm overall height, specifically engineered for M5 screw applications. Manufactured from 17-7 PH stainless steel with Rockwell C38 hardness ensuring consistent spring performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components.