S-91635A390 19 mm ID x 34 mm OD DIN 125; ISO 7089 General Purpose Washers

General Purpose Washers

1247FA00131 General Purpose Washers
1247FA00131 General Purpose Washers

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

Part No.
Part No. 1247FA00131
Equivalent to mcmaster :
91635A390

Basic Information

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

Dimension Parameters

ID 19 mm
OD 34 mm
Thickness 2.7-3.3 mm

Material & Strength Parameters

Material Brass
Hardness Not Rated

Installation & Application Parameters

For Screw Size M18

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) compliant with exemption 6(c) - Lead in copper alloy
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, ideal for humid or chemically aggressive environments
  • Precise dimensional accuracy with 19mm ID and 34mm OD ensuring perfect fit for M18 screws and uniform load distribution
  • International standard compliance with DIN 125 and ISO 7089 guarantees interchangeability and reliability in global applications
  • Environmentally responsible manufacturing with RoHS 3 compliance meeting strict regulatory requirements
  • Excellent electrical conductivity of brass material prevents galvanic corrosion when used with compatible fasteners
  • Consistent thickness tolerance (2.7-3.3mm) provides reliable sealing and spacing performance in assembled components
  • Durable copper alloy construction maintains structural integrity under vibration and thermal cycling conditions

Professional Applications & Engineering Value

This M18 brass flat washer delivers exceptional engineering value in applications where corrosion resistance and electrical conductivity are critical. The copper alloy material prevents rust formation in marine, plumbing, and electrical systems, while the precise metric dimensions (19mm ID × 34mm OD) ensure perfect alignment with M18 fasteners. Engineered to DIN 125 and ISO 7089 standards, these washers provide reliable load distribution in automotive assemblies, electrical enclosures, and industrial machinery. The RoHS 3 compliant brass construction makes them ideal for environmentally sensitive applications, solving common problems of fastener degradation in challenging operating conditions.

Specification Summary & Compliance

This metric flat washer features precise dimensional tolerances with 19mm inner diameter, 34mm outer diameter, and 2.7-3.3mm thickness range. Manufactured to DIN 125 and ISO 7089 standards for dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) compliant with exemption 6(c) for lead in copper alloy, meeting international environmental regulations while maintaining optimal material properties for industrial applications.

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