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Approved Vendor
Black Steel Single-Wave Washer
Manufacturer part: 90504A113
The wavy shape flexes like a spring to keep nuts and screws secure on slightly uneven surfaces. These washers add a small amount of tension to stop fasteners from backing out due to mild vibration. While they don't hold as well as other lock washers, they do grip slightly better than curved washers. They work best in electrical panels, light fixtures, and other light duty assemblies. Since these washers hold their shape when untightened, you can reuse them a handful of times without losing strength.Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
- Availability
- In stock
- Lead time
- Contact supplier
- Sold by
- Approved Vendor
Technical data
Specifications
Normalized product attributes for faster comparison and sourcing.
- ID
- 5.3 mm
- OD
- 11.0 mm
- ECCN
- EAR99
- Finish
- Black Oxide
- Hardness
- Rockwell C42
- Material
- Steel
- Thickness
- 0.5 mm
- Performance
- Reusable
- Washer Type
- Wave
- For Screw Size
- M5
- Overall Height
- 2.2 mm
- Number of Waves
- 1
- RoHS Compliance
- RoHS 3 (2015/863/EU) Compliant
- DFARS Compliance
- Specialty Metals Compliant (252.225-7009)
- Lock Washer Type
- Spring
- REACH Compliance
- REACH (EC 1907/2006) (06/27/2024, 241 SVHC) Compliant
- USMCA Qualifying
- No
- Country of Origin
- France, Germany, Italy
- Schedule B Number
- 731822.0000
- Specifications Met
- DIN 137B
- System of Measurement
- Metric
Supplier coverage
Compare available offers
Review pricing, availability, and fulfillment details from verified distributors.
| Supplier | Supplier SKU | Price | Stock | Lead time | Type |
|---|---|---|---|---|---|
| Approved Vendor | 90504A113 | $7.88 USD | Contact supplier | Contact supplier | Authorized · US distributor |
Prices and availability are provided by suppliers and may change.