S-97725A131 13.2 mm ID x 17.9 mm OD DIN 7603 Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-purity copper material, extending service life in harsh environments
• Excellent electrical conductivity ensures reliable performance in electrical and grounding applications
• Precise dimensional accuracy with 13.2mm ID and 17.9mm OD maintains consistent sealing and load distribution
• Optimized thickness range (1.3-1.7mm) provides ideal compression and vibration damping characteristics
• DIN 7603 compliance guarantees standardized quality and interchangeability in industrial assemblies
• RoHS 3 and REACH compliance meets stringent environmental regulations for global manufacturing
• Thermal performance makes these copper washers ideal for applications requiring heat dissipation

Professional Applications & Engineering Value

These M13 metric copper flat washers deliver critical performance advantages in demanding industrial applications where corrosion resistance and electrical conductivity are paramount. The copper material provides natural protection against oxidation and chemical degradation, making these DIN 7603 washers ideal for electrical panels, marine equipment, and chemical processing installations. The precise 13.2mm ID ensures perfect fitment on M13 screws, while the 17.9mm OD creates an optimal bearing surface to prevent joint loosening under vibration. These flat washers serve as reliable sealing components in plumbing and hydraulic systems, where their malleability allows for effective compression sealing against fluid leakage. The combination of electrical and thermal properties makes them essential in power distribution, automotive, and HVAC applications requiring both electrical safety and heat management.

Specification Summary & Compliance

This M13 metric copper flat washer features precise dimensional specifications including 13.2mm inner diameter, 17.9mm outer diameter, and thickness ranging from 1.3-1.7mm. Manufactured in compliance with DIN 7603 standards for dimensional accuracy and quality assurance. The product meets RoHS 3 (2015/863/EU) compliance for restricted hazardous substances and REACH (EC 1907/2006) compliance (updated 06/14/2023, 235 SVHC) for chemical safety regulations, ensuring environmental responsibility and global market acceptance.