S-92917A115 0.147" ID x 0.312" OD General Purpose Washers

General Purpose Washers

1246FA00143 General Purpose Washers
1246FA00143 General Purpose Washers

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

Part No.
Part No. 1246FA00143
Equivalent to mcmaster :
92917A115

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 0.147"
OD 0.312"
Thickness 0.018-0.032"

Material & Strength Parameters

Material Nickel-Plated Brass
Hardness Rockwell B60

Installation & Application Parameters

For Screw Size No. 6

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 nickel-plated brass construction, ideal for humid or chemically aggressive environments
  • Excellent load distribution with precise 0.147" ID and 0.312" OD dimensions, preventing surface damage and loosening under vibration
  • Consistent performance and durability ensured by Rockwell B60 hardness, maintaining shape under repeated assembly cycles
  • Reliable fit for No. 6 screws with controlled 0.018-0.032" thickness range, providing secure fastening without gaps
  • Global regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in international industrial markets
  • Long-term cost efficiency due to brass material's natural anti-galling properties, reducing maintenance and replacement needs

Professional Applications & Engineering Value

This nickel-plated brass flat washer delivers critical engineering value in applications where corrosion resistance and electrical conductivity are paramount. The brass core combined with a nickel plating surface effectively combats oxidation and galvanic corrosion, making it ideal for electrical enclosures, marine hardware, and plumbing systems. Its Rockwell B60 hardness ensures the washer maintains dimensional stability under clamp load, preventing embedment in softer materials. For No. 6 screw assemblies, the precise inner and outer diameters provide optimal bearing surface, distributing pressure evenly to protect components from stress concentration—solving common failure points in industrial washers used in vibrating machinery or thermal cycling environments.

Specification Summary & Compliance

This flat washer conforms to standard inch dimensional tolerances with ID 0.147", OD 0.312", and thickness range 0.018-0.032" for No. 6 screw size. Material specification meets Rockwell B60 hardness for consistent mechanical performance. The product is manufactured in full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, ensuring adherence to global environmental and safety standards for industrial components.

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