N-10 Inch-Series Bearing Locknut 1.967"-18 TPI - N0-10
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The N0-10, also commonly written as N-10, is a standard inch-series bearing locknut used to secure rolling bearings, pulleys, gears, sleeves, and other rotating components on compatible shafts. This low-profile carbon-steel retaining nut is designed for use with a matching tang-style lock washer so the nut can be mechanically locked after bearing adjustment or component positioning.
This locknut should be selected by shaft thread size, bearing arrangement, washer style, and equipment service specification before installation.
Key Features
- Inch-series bearing locknut.
- Part number: N0-10.
- Alternate formatting: N-10 and N 10.
- Thread size: 1.967 in. - 18 TPI.
- Thread direction: right-hand.
- Outside diameter: 2-11/16 in. / 2.688 in.
- Nut thickness: 1/2 in. / 0.500 in.
- Face diameter reference: 2.438 in.
- Material: carbon steel.
- Low-profile slotted locknut design.
- Four perimeter slots for hook spanner engagement and lockwasher tang retention.
- Requires matching W-10 or TW-10 tang lockwasher where specified.
Product Compatibility
Common application context includes industrial and equipment assemblies where an N-10 inch-series bearing locknut is specified, including:
- Bearing retention on shafts.
- Adapter sleeve and withdrawal sleeve assemblies.
- Pulley, gear, sprocket, and rotating component retention.
- Axle, hub, gearbox, and power-transmission service locations.
- Industrial, fleet, agricultural, marine equipment, and heavy machinery maintenance where this thread and locknut size are specified.
Use this nut only where the shaft thread, washer, bearing arrangement, and service manual confirm the N0-10 / N-10 size.
Fitment Notice
Confirm fitment by shaft thread, bearing series, adapter sleeve number, washer number, nut outside diameter, available wrench clearance, and equipment service procedure before ordering. This nut is not self-locking by itself and should not be installed without the correct locking washer or approved locking method.
The matching tang washer is typically W-10 or TW-10, depending on the application and supplier format.
When This Product Needs Replacement
Replace the locknut if the threads are worn, galled, cross-threaded, cracked, rounded, corroded, distorted, or damaged at the spanner slots. Replacement is also recommended if the nut has been over-torqued, if a lockwasher tang has damaged the slot area, or if the nut no longer seats cleanly against the washer or bearing component.
Installation Notes
Clean the shaft threads and inspect the bearing, sleeve, lockwasher, and mating faces before installation. Slide the matching tang lockwasher into position with the inner tang engaged in the shaft keyway or sleeve slot where applicable. Thread the locknut on by hand first to avoid cross-threading, then tighten with the correct hook spanner or service tool.
After the bearing or component is adjusted to the equipment manufacturer's specification, bend one lockwasher tang into one of the nut slots to prevent loosening. Do not rely on the nut alone in rotating or vibration-prone service.
Alternate / Cross-Reference Part Numbers
- N0-10 — primary supplied part number
- N-10 — common bearing locknut formatting
- N 10 — alternate catalog formatting
- SKF N 10 — cross-reference; verify by thread and dimensions
- Timken N-10 — cross-reference; verify by thread and dimensions
- FAG / Schaeffler N10 — cross-reference; verify by thread and dimensions
- NTN N10 — cross-reference; verify by thread and dimensions
- W-10 / TW-10 — matching tang lockwasher references; verify by application
Parts Desk Insight
This style of bearing locknut depends on the washer to stay secure. The nut provides the clamping and adjustment force, while the tang washer provides the mechanical lock. For a proper repair, order the matching lockwasher at the same time, use the correct hook spanner, and follow the equipment manufacturer's bearing-adjustment procedure rather than tightening by feel.
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Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
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