Approved Vendor

Mil. Spec. External-Tooth Lock Washer

Manufacturer part: 97775A523

These washers are manufactured and tested to strict U.S. military standards for material and construction. They resist vibration better than split lock washers to prevent nuts and screws from loosening in applications with constant movement, such as conveyors. Tooth lock washers typically can't be reused because the teeth often get bent when tightened. External Tooth—Teeth on the outside edge bite into both the fastener and the mating surface for a stronger hold than internal-tooth lock washers. However, they may mar your material and snag on objects. Pair these washers with nuts and screws that are large enough to make contact with the teeth, such as pan, button, and binding head screws.Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

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Technical data

Specifications

Normalized product attributes for faster comparison and sourcing.

ID
0.320"
OD
0.610"
ECCN
EAR99
Finish
Zinc Plated
Hardness
Rockwell C40
Material
Steel
Thickness
0.028" to 0.034"
Washer Type
Tooth
Certification
Mil. Spec.
For Screw Size
5/16,"
Tooth Location
External
RoHS Compliance
Not Compliant
DFARS Compliance
Not Specialty Metals Compliant
REACH Compliance
Not Compliant
USMCA Qualifying
No
Country of Origin
Taiwan
Schedule B Number
731821.0000
Specifications Met
ASME B18.21.1
System of Measurement
Inch
Military Specification
MS35335-34

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SupplierSupplier SKUPriceStockLead timeType
Approved Vendor97775A523$11.76 USDContact supplierContact supplierAuthorized · US distributor

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