S-92962A120 0.984" ID x 1.291" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Split Lock Washers for Socket Head Screws

1310FA00039 Split Lock Washers for Socket Head Screws
1310FA00039 Split Lock Washers for Socket Head Screws

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Part No.
Part No. 1310FA00039
Equivalent to mcmaster :
92962A120

Basic Information

System of Measurement Inch
Washer Type Split Lock
Specifications Met ASME B18.21.1

Dimension Parameters

ID 0.984"
OD 1.291"
Thickness 0.234"

Material & Strength Parameters

Material Black-Oxide Steel
Hardness Rockwell C38

Installation & Application Parameters

For Screw Size 7/8"

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant

Special Type Parameters

Split Lock Washer Type Standard
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 vibration resistance due to the split lock design, preventing loosening under dynamic loads
  • Enhanced corrosion protection from the black-oxide steel finish, extending service life in harsh environments
  • High durability and strength ensured by Rockwell C38 hardness, resisting deformation under high torque
  • Reliable fit and function with precise 0.984" ID and 1.291" OD dimensions for 7/8" screw applications
  • Compliance with industry standards including ASME B18.21.1, ensuring consistent quality and performance
  • Environmental and safety adherence through RoHS 3 and REACH compliance, supporting sustainable procurement
  • Optimal load distribution with 0.234" thickness, reducing stress on fastened components

Professional Applications & Engineering Value

This split lock washer is engineered to address critical challenges in industrial settings where vibration and mechanical stress can compromise joint integrity. Made from black-oxide steel, it offers excellent corrosion resistance, making it ideal for outdoor machinery, automotive assemblies, and heavy equipment exposed to moisture and chemicals. The standard split lock design applies continuous spring tension, effectively resisting loosening in high-vibration environments like motors, conveyors, and structural frameworks. With a Rockwell C38 hardness, it maintains its shape under repeated loading, ensuring long-term reliability for 7/8" screw applications. By meeting ASME B18.21.1 specifications, it delivers predictable performance, reducing maintenance costs and downtime in B2B operations.

Specification Summary & Compliance

This washer features precise dimensions: 0.984" ID, 1.291" OD, and 0.234" Thickness, designed for Class 2A inch-system tolerances to ensure accurate fit. It conforms to the ASME B18.21.1 standard for split lock washers, guaranteeing consistent manufacturing quality. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to environmental and safety regulations for industrial use.

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