S-93925A411 2.5 mm ID x 5 mm OD DIN 6797 Internal-Tooth Lock Washers

Internal-Tooth Lock Washers

1320FA00030 Internal-Tooth Lock Washers
1320FA00030 Internal-Tooth Lock Washers

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

Part No.
Part No. 1320FA00030
Equivalent to mcmaster :
93925A411

Basic Information

System of Measurement Metric
Washer Type Tooth Lock
Specifications Met DIN 6797

Dimension Parameters

ID 2.5 mm
OD 5 mm
Thickness 0.2-0.4 mm

Material & Strength Parameters

Material 18-8 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size M2.3

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/14/2023, 235 SVHC) Compliant

Special Type Parameters

Tooth Location Internal
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 vibration resistance prevents fastener loosening in high-stress applications
  • Internal teeth design provides maximum biting action and secure locking performance
  • 18-8 stainless steel construction offers excellent corrosion resistance for harsh environments
  • Precision DIN 6797 compliance ensures consistent quality and reliable dimensional accuracy
  • Metric sizing compatibility with M2.3 screws for seamless integration in metric assemblies
  • Compact 2.5x5mm profile delivers effective locking in space-constrained applications
  • Environmental compliance meets RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This M2.3 internal tooth lock washer addresses critical vibration-induced loosening challenges in precision assemblies. The internal teeth configuration creates multiple biting points that dig into both the bearing surface and fastener head, maintaining clamp force under dynamic loads. Manufactured from 18-8 stainless steel, this tooth lock washer provides reliable performance in corrosive environments where carbon steel components would fail. The DIN 6797 standard compliance guarantees dimensional precision and consistent locking force, making it ideal for industrial applications including electronics enclosures, precision instruments, automotive components, and machinery where vibration resistance is paramount. The compact 2.5mm internal diameter ensures perfect fitment with M2.3 fasteners while the 5mm outer diameter provides sufficient bearing surface.

Specification Summary & Compliance

This internal tooth lock washer features precise dimensions of 2.5mm internal diameter and 5mm outer diameter with thickness ranging 0.2-0.4mm. Manufactured to DIN 6797 specifications for dimensional accuracy and performance standards. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and global market acceptance. Designed specifically for use with M2.3 screw sizes in metric fastener systems.

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