S-98370A119 1.062" ID x 2.5" OD Oversized Washers

Oversized Washers

1248FA00733 Oversized Washers
1248FA00733 Oversized Washers

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

Part No.
Part No. 1248FA00733
Equivalent to mcmaster :
98370A119

Basic Information

System of Measurement Inch
Washer Type Flat

Dimension Parameters

ID 1.062"
OD 2.5"
Thickness 0.110-0.140"

Material & Strength Parameters

Material 18-8 Stainless Steel
Hardness Rockwell B68

Installation & Application Parameters

For Screw Size 1"

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 18-8 Stainless Steel construction, ensuring long-term reliability in harsh environments.
  • Exceptional load distribution with a large 2.5" OD, minimizing surface pressure and preventing material damage.
  • Precise fit for 1" screws with a 1.062" ID, providing secure fastening and reducing installation errors.
  • Enhanced durability from Rockwell B68 hardness, offering excellent resistance to wear and deformation under stress.
  • Consistent performance with a thickness range of 0.110-0.140", ensuring reliable spacing and vibration resistance.
  • Environmental compliance with RoHS 3 and REACH standards, making it safe for regulated industries and global supply chains.
  • Versatile industrial use as a heavy-duty flat washer, ideal for demanding applications requiring corrosion-resistant hardware.

Professional Applications & Engineering Value

This flat washer is engineered from 18-8 Stainless Steel to address critical challenges in industrial settings, such as corrosion from moisture, chemicals, or outdoor exposure. Its robust design, with a 2.5" OD and precise 1.062" ID, ensures even load distribution, reducing the risk of joint loosening or surface damage in heavy machinery, construction, and marine equipment. The Rockwell B68 hardness provides resilience against deformation, making it suitable for high-stress assemblies. As a RoHS and REACH compliant component, it supports sustainable manufacturing while delivering reliable performance in corrosion-resistant applications, from automotive to infrastructure projects.

Specification Summary & Compliance

This flat washer adheres to inch measurement standards with an ID of 1.062", OD of 2.5", and thickness of 0.110-0.140", designed for 1" screw sizes. It meets industry specifications for material and hardness, including 18-8 Stainless Steel and Rockwell B68. 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 suitable for global environmental standards.

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