S-98019A216 0.125" ID x 0.18" OD MS51496-P80 Mil. Spec. Washers

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 fit with 0.125" ID and 0.18" OD, providing optimal load distribution for No. 4 screw applications
• Enhanced surface durability with Rockwell C20 hardness, maintaining structural integrity under repeated stress
• Guaranteed compliance with MS51496-P80 military specifications, ensuring consistent performance in critical applications
• Environmental safety assurance through full RoHS 3 and REACH compliance, meeting international regulatory standards
• Reliable thickness tolerance (0.013-0.019") for consistent spacing and secure fastening in precision assemblies
• Versatile industrial compatibility with inch measurement system, facilitating seamless integration into existing equipment

Professional Applications & Engineering Value

These passivated 18-8 stainless steel flat washers deliver exceptional engineering value by solving critical fastening challenges in demanding environments. The corrosion-resistant properties prevent degradation from moisture, chemicals, and temperature variations, making them ideal for aerospace, marine, and industrial equipment applications. The precise 0.125" inner diameter ensures perfect alignment with No. 4 screws, while the 0.18" outer diameter provides optimal surface coverage to prevent embedding and distribute loads evenly. This combination addresses common issues of joint loosening, material fatigue, and galvanic corrosion, extending service life in heavy-duty assemblies where reliability is paramount.

Specification Summary & Compliance

Manufactured to exact inch system dimensions with 0.125" ID and 0.18" OD, these flat washers maintain precision tolerances for thickness (0.013-0.019"). The 18-8 stainless steel material with passivated surface treatment meets MS51496-P80 military specifications for quality assurance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and restricted substance adherence, supporting global supply chain requirements for industrial components.