S-98019A234 0.656" ID x 1.062" OD MS51496-P86 Mil. Spec. Washers

Mil. Spec. Washers

1250FA00039 Mil. Spec. Washers
1250FA00039 Mil. Spec. Washers

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

Part No.
Part No. 1250FA00039
Equivalent to mcmaster :
98019A234

Basic Information

System of Measurement Inch
Washer Type Flat
Specifications Met MS51496-P86

Dimension Parameters

ID 0.656"
OD 1.062"
Thickness 0.040-0.050"

Material & Strength Parameters

Material Passivated 18-8 Stainless Steel
Hardness Rockwell C20

Installation & Application Parameters

For Screw Size 5/8"

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 with passivated 18-8 stainless steel construction for extended service life in harsh environments
  • Exceptional mechanical strength with Rockwell C20 hardness to withstand high-pressure industrial applications
  • Precise dimensional accuracy with 0.656" ID and 1.062" OD ensuring perfect fit for 5/8" fasteners
  • Reliable performance compliance meeting MS51496-P86 military specification for consistent quality
  • Environmental regulation adherence with full RoHS 3 and REACH compliance for safe industrial use
  • Optimized load distribution through uniform 0.040-0.050" thickness for enhanced joint integrity
  • Long-term durability in inch-system applications requiring corrosion-resistant flat washers

Professional Applications & Engineering Value

This 5/8" flat washer delivers critical engineering value through its passivated 18-8 stainless steel composition and precise dimensional control. The MS51496-P86 specification ensures reliable performance in demanding applications where corrosion resistance and mechanical strength are paramount. The Rockwell C20 hardness provides optimal resistance to deformation under load, while the passivated surface treatment enhances corrosion protection in chemical, marine, and outdoor environments. These industrial flat washers effectively distribute clamping force, prevent galvanic corrosion, and maintain joint integrity in heavy-duty assemblies, making them ideal for machinery, structural frameworks, and equipment requiring inch-system washers with certified compliance.

Specification Summary & Compliance

This precision flat washer maintains dimensional accuracy with 0.656" inner diameter and 1.062" outer diameter, manufactured to MS51496-P86 military specification standards. The component features consistent thickness ranging 0.040-0.050" and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial sectors while meeting stringent quality and material requirements.

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