S-93493A312 4.3 mm ID x 9 mm OD Plastic Washers
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
- High-temperature resistance up to 280°F ensures reliable performance in demanding thermal environments
- Excellent electrical insulation properties from fiberglass construction prevents current leakage and short circuits
- Superior hardness rating (Rockwell R115) provides exceptional durability and load distribution
- Precise metric sizing (4.3mm ID, 9mm OD) ensures perfect fit with M4 screws for secure fastening
- Corrosion-resistant fiberglass material maintains integrity in harsh industrial conditions
- Regulatory compliance with RoHS 3 and REACH standards guarantees environmental and safety adherence
- Consistent thickness (0.7-0.9mm) provides uniform pressure distribution and vibration resistance
Professional Applications & Engineering Value
These fiberglass flat washers deliver critical engineering solutions where thermal stability and electrical insulation are paramount. The light green fiberglass composition offers exceptional resistance to high temperatures up to 280°F, making them ideal for electrical assemblies, automotive components, and industrial equipment exposed to heat stress. Their non-conductive properties prevent electrical current transfer, eliminating risks of short circuits in sensitive electronic applications. The Rockwell R115 hardness ensures these metric flat washers maintain structural integrity under constant pressure and vibration, providing reliable performance in M4 screw applications where consistent clamping force is essential for long-term assembly security.
Specification Summary & Compliance
Manufactured to precise metric dimensions with 4.3mm inner diameter and 9mm outer diameter, these flat washers feature consistent thickness ranging from 0.7-0.9mm for optimal performance with M4 screw sizes. The components maintain Rockwell R115 hardness standards and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial applications worldwide.
