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Bearing Locknut

Manufacturer part: 6343K27

With a nylon insert that grips your threaded shaft or spindle without damaging its threads, these locknuts—also called shaft nuts—hold bearings, bushings, gears, and pulleys prone to vibration tightly in place. They come as one piece, so you can easily clamp them onto your shaft or spindle. But, since they aren’t made entirely of metal, they don’t stand up to heat as well as all-metal locknuts. Slots in their sides mean you can tighten and loosen them with a spanner wrench or spanner socket. Their face is also chamfered to help keep the size and weight of your assembly at a minimum. All meet international standards for bearing locknut dimensions. Carbon Steel—All carbon steel locknuts are strong and resist wear, though they don’t stand up to corrosion as well as 303 stainless steel locknuts. Thread Spacing—When choosing your thread spacing, consider the precision of your application. The finer the threads, the more control you have when making adjustments.

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Technical data

Specifications

Normalized product attributes for faster comparison and sourcing.

OD
3 ,5/8,"
ECCN
EAR99
Size
2.751"-18
Type
UNS
Width
5/8,"
Spacing
Extra Fine
Material
Carbon Steel
Nut Type
Locknut
Face Style
Chamfered
Locking Type
Nylon Insert
Related Product
Sockets
RoHS Compliance
RoHS 3 (2015/863/EU) Compliant
DFARS Compliance
Specialty Metals COTS-Exempt
REACH Compliance
REACH (EC 1907/2006) (01/17/2023, 233 SVHC) Compliant
USMCA Qualifying
No
Country of Origin
United States
Schedule B Number
848790.0080
Specifications Met
ANSI/ABMA 8.2
For Spanner Wrench Style
Hook
Insert Maximum Temperature
160° F

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