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Approved Vendor
Belleville Spring Lock Washer
Manufacturer part: 90895A029
Stop socket head screws from wiggling loose on equipment with constant, vigorous vibration, such as engines, turbines, and generators. These washers have a small diameter to fit under screws with narrow heads. Similar to a spring, they flatten under pressure to add tension between mating surfaces. As long as the washers aren't deformed or otherwise damaged, you can reuse them indefinitely without losing locking strength. Also known as conical washers and Belleville washers. Stack multiple washers in the same direction to double or triple how much weight they can bear. Stack washers in opposite directions for better deflection, which means they compress further and withstand more shock and movement without loosening. 18-8 Stainless Steel—The choice for wet and outdoor environments, these washers won't rust when exposed to moisture. However, they can't hold up to the harsh chemicals that 316 stainless steel can. Top-and-Bottom Serration—Adds friction for extra gripping power.
- Availability
- In stock
- Lead time
- Contact supplier
- Sold by
- Approved Vendor
Technical data
Specifications
Normalized product attributes for faster comparison and sourcing.
- ID
- 0.264"
- OD
- 0.374"
- ECCN
- EAR99
- Hardness
- Rockwell C38
- Material
- 18-8 Stainless Steel
- Thickness
- 0.028"
- Performance
- Corrosion Resistant, Heavy Vibration Resistant, Reusable
- Washer Type
- Conical
- For Use With
- Socket Head Screws
- For Screw Size
- 1/4,", M6
- Overall Height
- 0.047"
- 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
- Germany
- Schedule B Number
- 731821.0000
- Serration Location
- Top and Bottom
- System of Measurement
- Inch, Metric
Supplier coverage
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| Supplier | Supplier SKU | Price | Stock | Lead time | Type |
|---|---|---|---|---|---|
| Approved Vendor | 90895A029 | $8.76 USD | Contact supplier | Contact supplier | Authorized · US distributor |
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