S-97725A273 3.2 mm ID x 6.4 mm OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Lightweight aluminum construction reduces overall assembly weight while maintaining structural integrity
• Excellent corrosion resistance ensures long-term reliability in various environmental conditions
• Precision dimensional tolerances provide consistent fit and performance with M3 fasteners
• Optimized load distribution through 6.4mm outer diameter protects sensitive surfaces from damage
• Flexible thickness range (0.6-0.9mm) accommodates varying assembly requirements and gap adjustments
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
• Cost-effective solution combining aluminum's durability with manufacturing efficiency

Professional Applications & Engineering Value

This M3 metric aluminum flat washer delivers exceptional engineering value in applications where weight reduction and corrosion resistance are critical. The high-quality aluminum material provides natural oxidation resistance without additional coatings, making it ideal for electronic assemblies, aerospace components, and outdoor equipment where environmental exposure is a concern. The precise 3.2mm inner diameter ensures perfect alignment with M3 screws, while the 6.4mm outer diameter effectively distributes clamping force to prevent surface damage to delicate materials. The controlled 0.6-0.9mm thickness range allows engineers to fine-tune assembly clearances while maintaining consistent performance across production runs, solving common challenges of fastener loosening and material compatibility in lightweight structures.

Specification Summary & Compliance

This precision flat washer features metric dimensions with 3.2mm inner diameter, 6.4mm outer diameter, and 0.6-0.9mm thickness range, engineered for M3 screw applications. Manufactured from aluminum without hardness rating requirements, the component maintains dimensional consistency for reliable performance. The product fully complies with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards (updated 06/14/2023, 235 SVHC), ensuring environmental responsibility and global market accessibility for industrial and commercial applications.