S-91635A270 10.5 mm ID x 20 mm OD DIN 125; ISO 7089 General Purpose Washers

General Purpose Washers

1247FA00124 General Purpose Washers
1247FA00124 General Purpose Washers

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

Part No.
Part No. 1247FA00124
Equivalent to mcmaster :
91635A270

Basic Information

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

Dimension Parameters

ID 10.5 mm
OD 20 mm
Thickness 1.8-2.2 mm

Material & Strength Parameters

Material Brass
Hardness Not Rated

Installation & Application Parameters

For Screw Size M10

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Superior corrosion resistance thanks to high-quality brass material, ideal for humid or chemically aggressive environments.
  • Precise fit and reliable load distribution with a 10.5mm inner diameter and 20mm outer diameter, ensuring stability for M10 screws.
  • Consistent performance and interchangeability guaranteed by compliance with DIN 125 and ISO 7089 international standards.
  • Durable construction with a thickness of 1.8-2.2 mm, providing long-lasting service in demanding applications.
  • Environmental and workplace safety through full RoHS 3 and REACH compliance, meeting strict regulatory requirements.
  • Wide industrial compatibility as a metric flat washer, suitable for various machinery, electrical, and assembly uses.
  • Cost-effective maintenance by reducing wear on components and preventing loosening under vibration.

Professional Applications & Engineering Value

This M10 metric brass flat washer is engineered to address common industrial challenges such as galvanic corrosion, component wear, and fastener loosening. Made from brass, it offers excellent corrosion resistance, making it ideal for electrical systems, marine equipment, and plumbing where moisture is a concern. The precise dimensions—10.5mm ID and 20mm OD—ensure a secure fit for M10 screws, distributing load evenly to prevent surface damage and extend assembly life. Adherence to DIN 125 and ISO 7089 standards guarantees reliability in industrial washers applications, from machinery manufacturing to automotive assemblies, providing consistent performance and reducing downtime.

Specification Summary & Compliance

This washer features a flat type design with metric measurements: inner diameter of 10.5 mm, outer diameter of 20 mm, and thickness ranging from 1.8 to 2.2 mm, tailored for M10 screw size. It conforms to DIN 125 and ISO 7089 specifications, ensuring dimensional accuracy and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, affirming its safety for environmental and health standards in industrial use.

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