S-91755A147 0.47" ID x 0.734" 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 self-retaining design prevents loosening under vibration and movement, reducing maintenance needs
- Excellent temperature resistance from -40°F to 180°F ensures reliable performance in extreme environments
- Nylon construction with Rockwell R120 hardness provides superior durability and wear resistance
- Dual-standard compatibility fits both 5/16" and M8 screw sizes for versatile application across systems
- Precision dimensional control (0.47" ID, 0.734" OD) ensures perfect fit and consistent sealing performance
- RoHS 3 compliance meets international environmental standards for safe, sustainable usage
- Non-conductive, corrosion-resistant properties eliminate galvanic corrosion risks in electrical applications
Professional Applications & Engineering Value
This nylon self-retaining washer delivers exceptional engineering value in demanding industrial environments where vibration resistance and temperature stability are critical. The self-retaining design eliminates the need for additional locking components, simplifying assembly while providing reliable fastening in automotive, electronics, and machinery applications. Manufactured from high-grade nylon plastic with Rockwell R120 hardness, it withstands mechanical stress and maintains dimensional stability across the broad -40°F to 180°F temperature range. The washer's dual-standard compatibility with both inch (5/16") and metric (M8) screw systems makes it ideal for global manufacturing operations and equipment maintenance, while its non-metallic composition prevents galvanic corrosion in mixed-material assemblies.
Specification Summary & Compliance
This washer features precision dimensions with 0.47" inner diameter, 0.734" outer diameter, and thickness ranging from 0.022" to 0.042". Manufactured to exacting standards for both inch and metric screw systems (5/16" and M8), it maintains consistent performance across the specified temperature range. The product is fully RoHS 3 (2015/863/EU) compliant and meets industry standards for material hardness (Rockwell R120) and dimensional accuracy.
