S-93852A121 0.938" ID x 2.25" OD ASME B18.21.1 USS Washers

USS Washers

1253FA00090 USS Washers
1253FA00090 USS Washers

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

Part No.
Part No. 1253FA00090
Equivalent to mcmaster :
93852A121

Basic Information

System of Measurement Inch
Washer Type Flat
Washer Designation USS
Specifications Met ASME B18.21.1

Dimension Parameters

ID 0.938"
OD 2.25"
Thickness 0.136-0.192"

Material & Strength Parameters

Material 316 Stainless Steel
Hardness Not Rated

Installation & Application Parameters

For Screw Size 7/8"

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
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
REQUEST A QUOTE
  • Fast delivery
  • Enjoy discounts on bulk purchases
  • Secure Payment
  • Fast Global Shipping

Key Features & Benefits at a Glance

  • Superior corrosion resistance in harsh environments thanks to 316 stainless steel construction
  • Enhanced load distribution and surface protection with a large 2.25" outer diameter
  • Precise fit for 7/8" fasteners ensured by the 0.938" inner diameter
  • Reliable performance under heavy-duty conditions with robust thickness ranging from 0.136" to 0.192"
  • Guaranteed dimensional consistency and interchangeability through compliance with ASME B18.21.1 standard
  • Safe for sensitive applications with full RoHS 3 and REACH compliance
  • Long-term durability and reduced maintenance needs in industrial settings

Professional Applications & Engineering Value

This 316 Stainless Steel USS flat washer is engineered to address critical challenges in demanding industrial environments. Its superior corrosion resistance makes it ideal for chemical processing, marine applications, and outdoor installations where moisture and corrosive agents are present. The USS designation and ASME B18.21.1 compliance ensure reliable performance in heavy machinery, structural assemblies, and pipeline systems where consistent load distribution is essential. The precise 7/8" screw size compatibility and substantial 2.25" OD provide optimal bearing surface, preventing fastener loosening and material damage in high-vibration applications. These industrial washers deliver long-term reliability while meeting strict environmental regulations through RoHS and REACH compliance.

Specification Summary & Compliance

This USS flat washer features an inner diameter of 0.938", outer diameter of 2.25", and thickness range of 0.136-0.192" designed specifically for 7/8" screw applications. Manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for industrial use.

🔍
Cancel