S-92916A456 1.312" ID x 3" OD General Purpose Washers

General Purpose Washers

1246FA00139 General Purpose Washers
1246FA00139 General Purpose Washers

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

Part No.
Part No. 1246FA00139
Equivalent to mcmaster :
92916A456

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 1.312"
OD 3"
Thickness 0.120-0.187"

Material & Strength Parameters

Material Brass
Hardness Rockwell B60

Installation & Application Parameters

For Screw Size 1 1/4"

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 due to brass construction, ideal for humid or chemically aggressive environments.
  • Exceptional load distribution with a large 3" outer diameter, minimizing surface pressure and preventing material damage.
  • Precise fit and alignment ensured by the 1.312" inner diameter, perfectly matching 1 1/4" screw sizes for secure fastening.
  • Enhanced durability and deformation resistance from Rockwell B60 hardness, maintaining performance under heavy-duty stress.
  • Reliable thickness tolerance (0.120-0.187") for consistent performance and ease of installation in industrial assemblies.
  • Full environmental compliance with RoHS 3 and REACH standards, ensuring safe use in regulated industries.
  • Long-lasting performance in demanding applications, reducing maintenance needs and replacement costs.

Professional Applications & Engineering Value

This heavy-duty brass flat washer is engineered to solve critical challenges in industrial settings where corrosion and high loads are common. Its brass material inherently resists rust and galvanic corrosion, making it perfect for marine, chemical processing, and outdoor equipment. The large 3" OD and robust Rockwell B60 hardness provide excellent load distribution, preventing bolt loosening and surface indentation in structural applications. With precise 1.312" ID sizing for 1 1/4" screw size, it ensures secure fits in machinery, piping systems, and heavy construction, delivering reliable, long-term fastening solutions that minimize downtime and enhance operational safety.

Specification Summary & Compliance

This washer features inch system dimensions with an ID of 1.312", OD of 3", and thickness range of 0.120-0.187" for use with 1 1/4" screws. It meets standard flat washer specifications and is manufactured from brass with a hardness of Rockwell B60. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for industrial use.

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