S-91635A180 2.7 mm ID x 6 mm OD DIN 125; ISO 7089 General Purpose Washers

General Purpose Washers

1247FA00118 General Purpose Washers
1247FA00118 General Purpose Washers

Image may differ from product. See technical specification for details.

Part No.
Part No. 1247FA00118
Equivalent to mcmaster :
91635A180

Basic Information

System of Measurement Metric
Washer Type Flat
Specifications Met DIN 125; ISO 7089

Dimension Parameters

ID 2.7 mm
OD 6 mm
Thickness 0.4-0.6 mm

Material & Strength Parameters

Material Brass
Hardness Not Rated

Installation & Application Parameters

For Screw Size M2.5

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance from high-quality brass material, ensuring long-term reliability in humid or chemically aggressive environments
  • Precise dimensional accuracy with 2.7mm ID and 6mm OD, providing perfect fit and consistent performance for M2.5 fasteners
  • Enhanced load distribution with controlled 0.4-0.6mm thickness, preventing surface damage and maintaining joint integrity
  • Guaranteed interchangeability through strict compliance with DIN 125 and ISO 7089 international standards
  • Environmentally responsible manufacturing with full RoHS 3 (2015/863/EU) compliance for sustainable operations
  • Excellent electrical conductivity inherent to brass material, making these washers ideal for electrical and electronic assemblies
  • Reduced maintenance requirements due to brass's natural anti-galling properties and corrosion resistance

Professional Applications & Engineering Value

These M2.5 metric brass flat washers deliver critical engineering solutions where corrosion resistance and electrical conductivity are paramount. The brass construction prevents galvanic corrosion when used with compatible metals, while the precise DIN 125 and ISO 7089 compliance ensures perfect fitment in automated assembly processes. These washers effectively distribute clamping force in electrical enclosures, instrumentation panels, and marine applications, preventing loosening from vibration and protecting sensitive surfaces from damage. The 0.4-0.6mm thickness range provides optimal compression characteristics without adding unnecessary bulk to compact assemblies.

Specification Summary & Compliance

Manufactured to exacting DIN 125 and ISO 7089 standards, these washers maintain precise dimensional tolerances with 2.7mm inner diameter and 6mm outer diameter specifications. The 0.4-0.6mm thickness range ensures consistent performance across production batches. Full compliance with RoHS 3 (2015/863/EU) regulations guarantees environmental safety, while the brass material provides natural corrosion resistance without additional surface treatments. These washers are specifically engineered for M2.5 screw sizes in metric fastening systems.

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