S-97725A279 45 mm ID x 53 mm OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality aluminum construction, ideal for harsh environments and outdoor applications
• Excellent load distribution with precise 45mm ID and 53mm OD dimensions, preventing surface damage and fastener loosening
• Lightweight aluminum material reduces overall assembly weight while maintaining structural integrity
• Consistent 2.8-3.2mm thickness range ensures reliable performance and uniform pressure distribution
• Perfect compatibility with M42 metric screws for seamless integration into existing industrial assemblies
• Full regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible manufacturing
• Cost-effective solution combining aluminum's durability with flat washer design for long-term reliability

Professional Applications & Engineering Value

This M42 metric aluminum flat washer delivers exceptional engineering value through its specialized aluminum construction and precise dimensional tolerances. The 45mm inner diameter and 53mm outer diameter work in concert to distribute clamping forces evenly across mating surfaces, preventing stress concentration and material deformation in industrial assemblies. The aluminum material provides natural corrosion resistance without additional coatings, making it ideal for applications where weight reduction and environmental durability are critical. From machinery manufacturing to electrical enclosures and transportation equipment, this flat washer solves common engineering challenges by combining lightweight performance with reliable load distribution capabilities, while the consistent 2.8-3.2mm thickness ensures predictable compression behavior across multiple fastening points.

Specification Summary & Compliance

This metric flat washer features precise dimensional specifications including 45mm inner diameter, 53mm outer diameter, and 2.8-3.2mm thickness range, designed specifically for M42 screw applications. Manufactured to standard metric system requirements, the washer maintains dimensional accuracy for reliable performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications across global markets.