S-91844A430 0.41" ID x 1" OD Curved Washers

Curved Washers

1301FA00009 Curved Washers
1301FA00009 Curved Washers

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

Part No.
Part No. 1301FA00009
Equivalent to mcmaster :
91844A430

Basic Information

System of Measurement Inch
Washer Type Curved

Dimension Parameters

ID 0.41"
OD 1"
Thickness 0.050-0.070"

Material & Strength Parameters

Material Zinc-Plated Steel
Hardness Rockwell B40

Installation & Application Parameters

For Screw Size 3/8"
For Tube OD 1"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) 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

  • Enhanced load distribution through curved design prevents surface damage and maintains joint integrity under pressure
  • Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh environments
  • Optimal vibration resistance maintains fastener tension and prevents loosening in dynamic applications
  • Precision dimensional compatibility with 0.41" ID for 3/8" screws and 1" OD for tube applications ensures perfect fit
  • Consistent performance reliability with Rockwell B40 hardness providing durable mechanical properties
  • Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial use
  • Versatile thickness range (0.050-0.070") accommodates various assembly requirements and compression needs

Professional Applications & Engineering Value

Our zinc-plated steel curved washers deliver exceptional engineering value in demanding industrial applications where vibration resistance and load distribution are critical. The curved design specifically addresses common challenges of joint relaxation and surface marring by providing spring-like action that maintains constant pressure. Manufactured from inch-system compliant materials, these washers are engineered for 3/8" screw applications and 1" tube OD scenarios commonly found in mechanical assemblies, automotive systems, and heavy equipment. The zinc plating offers superior corrosion protection, while the precise dimensional specifications ensure consistent performance in high-stress environments where fastener integrity cannot be compromised.

Specification Summary & Compliance

This curved washer features precise inch-system dimensions with 0.41" internal diameter, 1" outer diameter, and thickness ranging from 0.050" to 0.070". Manufactured to exacting standards for use with 3/8" screws and 1" tube OD applications, it maintains Rockwell B40 hardness for consistent mechanical performance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and safety compliance for industrial procurement requirements.

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