S-91755A137 0.275" ID x 0.787" 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
- Superior vibration resistance with self-retaining design that prevents loosening under dynamic loads
- Excellent chemical and corrosion resistance thanks to durable nylon plastic construction
- Wide temperature tolerance from -40°F to 180°F for reliable performance in extreme environments
- Dual-standard compatibility with both No. 10 (inch) and M5 (metric) screw sizes for versatile applications
- Consistent dimensional stability with precise 0.275" ID and 0.787" OD for perfect fit every time
- Environmentally compliant with RoHS 3 (2015/863/EU) certification for global market acceptance
- Optimal hardness at Rockwell R120 for durable performance without damaging mating surfaces
Professional Applications & Engineering Value
This nylon plastic self-retaining washer delivers exceptional engineering value in applications where traditional washers fail. The self-retaining feature eliminates the need for additional locking components, reducing assembly time and preventing costly downtime from vibration-induced loosening. Made from high-grade nylon material with Rockwell R120 hardness, it provides excellent electrical insulation and corrosion resistance while maintaining dimensional stability across its broad temperature range of -40°F to 180°F. The dual compatibility with both No. 10 and M5 screw sizes makes it ideal for equipment serving international markets, automotive assemblies, electronic enclosures, and machinery where reliable fastening is critical to operational safety and longevity.
Specification Summary & Compliance
This washer features precise dimensions with 0.275" inner diameter, 0.787" outer diameter, and thickness ranging from 0.049" to 0.069". Manufactured to exacting standards for both inch and metric systems, it maintains consistent performance across its specified temperature range. The product is fully RoHS 3 (2015/863/EU) compliant and constructed from high-quality nylon plastic with Rockwell R120 hardness rating, ensuring reliable performance in industrial applications while meeting international environmental regulations.
