S-92150A218 0.192" ID x 0.406" OD MS51859-4 Mil. Spec. Plastic Washers
Mil. Spec. Plastic Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Temperature & Environment Parameters
Installation & Application Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Excellent corrosion resistance due to nylon plastic construction, eliminating rust and degradation in humid or chemical environments
- Electrical insulation properties prevent current conduction, enhancing safety in electrical assemblies
- Lightweight design reduces overall component weight without compromising load distribution
- Dimensional precision with 0.406" OD and 0.192" ID ensures perfect fit for No. 8 screws, preventing loosening
- Temperature resilience up to 180°F maintains structural integrity in moderate heat applications
- Regulatory compliance with MS51859-4 specifications guarantees consistent quality and interchangeability
- Environmental safety through REACH compliance, ensuring no hazardous substances in industrial use
Professional Applications & Engineering Value
This nylon plastic flat washer delivers critical engineering solutions where metal fasteners fall short. Its non-conductive properties make it ideal for electrical enclosures, control panels, and electronic devices, preventing short circuits. The corrosion-resistant nylon material withstands moisture, chemicals, and UV exposure, outperforming steel in harsh environments like outdoor equipment, marine hardware, and chemical processing plants. With a precise 0.192" ID for No. 8 screws, it ensures uniform clamping force and vibration resistance in automotive trim, consumer appliances, and lightweight assemblies. The MS51859-4 compliance assures dimensional consistency for maintenance and OEM replacements, while the 180°F temperature rating supports applications near motors or HVAC systems without deformation.
Specification Summary & Compliance
This flat washer maintains inch system dimensions: 0.406" OD, 0.192" ID, and thickness range of 0.031–0.065". It conforms to MS51859-4 military specifications for dimensional accuracy and performance. The washer is REACH (EC 1907/2006) compliant as of June 14, 2023, with no SVHC above threshold levels, ensuring safe use in regulated industries.
