S-91755A154 0.198" ID x 0.328" OD Self-Retaining Washers
Self-Retaining 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
- Secure vibration-resistant fastening with self-retaining design that prevents loosening in dynamic applications
- Excellent temperature performance maintaining integrity across extreme conditions from -40°F to 180°F
- Superior corrosion and chemical resistance thanks to durable Nylon construction
- Reliable electrical insulation properties for safe use in electrical assemblies
- Precision dimensional stability with Rockwell R120 hardness ensuring consistent performance
- Dual-standard compatibility fitting both No. 6 (inch) and M3.5 (metric) screw sizes
- Environmental compliance assurance with RoHS 3 (2015/863/EU) certification
Professional Applications & Engineering Value
These Nylon self-retaining washers deliver critical engineering solutions where thermal stability and vibration resistance are paramount. The Rockwell R120 hardness provides exceptional durability while the temperature range of -40°F to 180°F ensures reliable performance in automotive, aerospace, and industrial equipment exposed to thermal cycling. The self-retaining feature eliminates the need for additional locking components, reducing assembly time and preventing fastener loosening in high-vibration environments. As both electrical insulators and corrosion-resistant components, these washers are ideal for electrical enclosures, control systems, and outdoor applications where moisture and chemical exposure would compromise metal alternatives.
Specification Summary & Compliance
Precision-engineered with 0.198" ID and 0.328" OD dimensions with thickness ranging from 0.022" to 0.042". Manufactured to exacting standards for consistent performance with both No. 6 (inch) and M3.5 (metric) screw systems. The Nylon material meets Rockwell R120 hardness specifications and maintains dimensional stability across the specified temperature range. Fully compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring safe use in global markets and sensitive applications.
