S-93661A132 1.625" ID x 3" OD SAE Washers

SAE Washers

1251FA00221 SAE Washers
1251FA00221 SAE Washers

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

Part No.
Part No. 1251FA00221
Equivalent to mcmaster :
93661A132

Basic Information

System of Measurement Inch
Washer Type Flat
Washer Designation SAE

Dimension Parameters

ID 1.625"
OD 3"
Thickness 0.153-0.213"

Material & Strength Parameters

Material Copper
Hardness Not Rated

Installation & Application Parameters

For Screw Size 1 1/2"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2022, 223 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

  • Superior corrosion resistance for extended service life in harsh industrial environments
  • Excellent electrical conductivity ensures reliable performance in electrical and grounding applications
  • Non-magnetic properties make it ideal for sensitive electronic and instrumentation assemblies
  • SAE standard compliance guarantees dimensional consistency and interchangeability
  • RoHS 3 & REACH compliance meets stringent environmental regulations for global manufacturing
  • Precision 1.625" ID provides perfect fit for 1 1/2" screw applications
  • Large 3" OD bearing surface distributes load effectively and prevents surface damage

Professional Applications & Engineering Value

This copper flat washer delivers critical performance advantages where standard steel washers fail. The copper material provides inherent corrosion resistance without additional plating, making it perfect for marine, chemical processing, and outdoor applications. Its exceptional electrical conductivity solves grounding and electrical connection challenges in power distribution systems, while the non-magnetic properties prevent interference in sensitive electronic equipment. The SAE standard ensures dimensional accuracy for reliable sealing and load distribution under 1 1/2" screw fasteners. The substantial 3" OD creates an optimal bearing surface that prevents embedment in soft materials and maintains joint integrity in heavy-duty industrial applications.

Specification Summary & Compliance

This flat washer features precise dimensions with 1.625" inner diameter and 3" outer diameter, designed specifically for 1 1/2" screw applications. Manufactured to SAE standards in the inch measurement system, it maintains consistent thickness between 0.153-0.213". The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global manufacturing and industrial applications.

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