S-98019A218 0.125" ID x 0.18" OD MS51496-P65 Mil. Spec. Washers
Mil. Spec. Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance from passivated 18-8 stainless steel construction, ensuring long-term reliability in harsh environments
- Precise dimensional compatibility with 0.125" ID and 0.18" OD, providing perfect fit for No. 4 screw applications
- Enhanced load distribution through controlled thickness (0.029-0.032"), preventing surface damage and maintaining joint integrity
- Exceptional hardness rating of Rockwell C20, offering reliable performance under mechanical stress and repeated use
- Full regulatory compliance with MS51496-P65 specifications, ensuring consistent quality and engineering standards
- Environmental responsibility through RoHS 3 and REACH compliance, meeting modern manufacturing requirements
- Optimized surface protection via passivation treatment, maximizing corrosion resistance without compromising dimensional accuracy
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these passivated 18-8 stainless steel flat washers provide critical protection against galvanic corrosion and environmental degradation. The precision 0.125" ID and 0.18" OD dimensions ensure perfect alignment with No. 4 screw fasteners, while the controlled thickness maintains uniform pressure distribution across mating surfaces. Ideal for electrical enclosures, marine equipment, and food processing machinery where corrosion resistance and dimensional stability are paramount. The MS51496-P65 compliance guarantees consistent performance in aerospace, defense, and precision manufacturing applications where failure is not an option.
Specification Summary & Compliance
These flat washers feature precision inch dimensions with 0.125" inner diameter, 0.18" outer diameter, and thickness ranging 0.029-0.032". Manufactured from 18-8 stainless steel with passivated surface treatment, they meet MS51496-P65 military specifications and maintain Rockwell C20 hardness. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and workplace safety standards are maintained throughout the product lifecycle.
