S-97471A132 28 mm ID x 58 mm OD DIN 432 Tab Lock Washers

Tab Lock Washers

1331FA00023 Tab Lock Washers
1331FA00023 Tab Lock Washers

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

Part No.
Part No. 1331FA00023
Equivalent to mcmaster :
97471A132

Basic Information

System of Measurement Metric
Washer Type Tab Lock
Specifications Met DIN 432

Dimension Parameters

ID 28 mm
OD 58 mm
Thickness 1.6 mm
Overall Height 9.5 mm

Material & Strength Parameters

Material 316 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size M27

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant

Special Type Parameters

Tab Width 8.5 mm
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 with 316 stainless steel construction, ideal for harsh environments like marine or chemical applications.
  • Reliable locking security through the tab design, preventing fastener loosening under vibration and dynamic loads.
  • Precise dimensional fit with 28mm ID and 58mm OD, ensuring compatibility with M27 screws for accurate assembly.
  • Durable mechanical performance from a thickness of 1.6mm and tab width of 8.5mm, offering consistent load distribution.
  • Compliance with international standards including DIN 432, guaranteeing quality and interchangeability in metric systems.
  • Environmental and safety adherence with RoHS 3 and REACH compliance, meeting strict industrial regulatory requirements.
  • Long-term cost efficiency due to stainless steel's durability, reducing maintenance and replacement frequency.

Professional Applications & Engineering Value

This M27 tab lock washer is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion in demanding applications. Made from 316 stainless steel, it provides exceptional resistance to chemicals and moisture, making it suitable for marine, chemical processing, and outdoor equipment. The tab lock design ensures secure fastening by mechanically locking the nut or bolt in place, enhancing safety in machinery, structural assemblies, and transportation systems. With a metric size of 28mm ID and 58mm OD, it fits precisely with M27 screws, facilitating easy installation and reliable performance in industrial washers applications where precision and durability are paramount.

Specification Summary & Compliance

This washer adheres to DIN 432 standards for dimensional accuracy and performance, with an internal diameter of 28mm, outer diameter of 58mm, thickness of 1.6mm, and tab width of 8.5mm. It is manufactured to metric specifications for use with M27 screw sizes and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity in industrial applications.

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