S-91545A440 5.5 mm ID x 10 mm OD DIN 125 Plastic Washers

Key Features & Benefits at a Glance

• Self-lubricating design reduces friction and wear, extending equipment lifespan and minimizing maintenance needs
• Excellent chemical and corrosion resistance from nylon plastic construction ensures reliable performance in harsh industrial environments
• Precise dimensional accuracy with 5.5mm ID and 10mm OD guarantees perfect fit for M5 screws, preventing loosening and misalignment
• High-temperature tolerance up to 220°F maintains structural integrity and functionality in demanding thermal conditions
• Rockwell M75 hardness provides durable load distribution and vibration resistance for long-term fastener security
• Electrical insulation properties prevent current leakage and short circuits in electrical assemblies
• Full regulatory compliance with DIN 125, RoHS 3, and REACH standards ensures safety and environmental responsibility

Professional Applications & Engineering Value

These lubricant-filled nylon flat washers deliver exceptional engineering value by solving critical industrial challenges. The M5 metric size with DIN 125 certification ensures precise thread engagement and uniform load distribution, preventing joint failure in vibration-prone assemblies. The gray nylon plastic material offers inherent corrosion resistance, making these washers ideal for chemical processing, marine, and outdoor applications where metal fasteners would degrade. The integrated lubricant provides consistent friction reduction without external greasing, particularly valuable in electrical insulation scenarios and food processing equipment where contamination must be avoided. With temperature resistance to 220°F, these washers maintain performance in automotive, HVAC, and industrial machinery applications where thermal cycling is common.

Specification Summary & Compliance

This M5 metric flat washer features precise dimensions of 5.5mm inner diameter and 10mm outer diameter with thickness between 0.9-1.1mm, manufactured to DIN 125 standards for dimensional accuracy and interchangeability. The lubricant-filled nylon plastic construction provides Rockwell M75 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) for hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical safety, ensuring environmental responsibility and workplace safety standards are met for global industrial applications.