Approved Vendor

Mil. Spec. Internal-Tooth Lock Washer

Manufacturer part: 96551A270

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. Internal Tooth—Internal teeth dig into the nut or screw to prevent it from backing out. Unlike external-tooth lock washers, these have a smooth outside edge, so they are less likely to mar your material or snag on objects. However, they don’t grip quite as well. Pair them with fasteners that have small diameters, such as fillister and cheese head screws.Corrosion-Resistant Cadmium-Plated Steel—The finish creates a better barrier against rust than zinc plating for use in wet and outdoor environments.

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Technical data

Specifications

Normalized product attributes for faster comparison and sourcing.

ID
0.448"
OD
0.789"
ECCN
EAR99
Finish
Cadmium Plated
Hardness
Rockwell C40 to Rockwell C50
Material
Steel
Thickness
0.032" to 0.040"
Performance
Corrosion Resistant
Washer Type
Tooth
Certification
Mil. Spec.
For Screw Size
7/16,"
Tooth Location
Internal
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, NASM35333
System of Measurement
Inch
Military Specification
MS35333-43

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SupplierSupplier SKUPriceStockLead timeType
Approved Vendor96551A270$9.46 USDContact supplierContact supplierAuthorized · US distributor

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