S-90965A290 40 mm ID x 72 mm OD DIN 125; ISO 7089 General Purpose Washers
General Purpose Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh chemical and marine environments
- Reliable load distribution with 72mm outer diameter, preventing surface damage and maintaining joint integrity
- Precision fit for M39 fasteners with 40mm inner diameter, ensuring secure installation and vibration resistance
- Dimensional consistency manufactured to DIN 125 and ISO 7089 standards for guaranteed interchangeability
- Enhanced durability with 5.4-6.6mm thickness range, providing robust support for heavy-duty applications
- Global compliance assurance meeting RoHS 3 and REACH regulations for safe international supply chain integration
- Reduced maintenance cycles through superior material properties that resist pitting and crevice corrosion
Professional Applications & Engineering Value
This 316 stainless steel flat washer delivers critical engineering solutions where corrosion resistance and dimensional precision are paramount. The M39 metric sizing combined with DIN 125 and ISO 7089 compliance ensures perfect compatibility in industrial machinery, chemical processing equipment, and marine applications. The washer's substantial 72mm OD effectively distributes clamping force across wider surfaces, preventing embedment in softer materials while the 40mm ID maintains precise alignment with M39 fasteners. This flat washer specifically addresses common failure points in high-vibration environments through its thickness tolerance of 5.4-6.6mm, providing consistent performance where thermal cycling and chemical exposure would degrade inferior materials.
Specification Summary & Compliance
Manufactured to DIN 125 and ISO 7089 dimensional standards with 40mm inner diameter, 72mm outer diameter, and 5.4-6.6mm thickness range. This metric flat washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring unrestricted use across global industrial markets. The 316 stainless steel construction provides inherent corrosion resistance without additional surface treatments.
