PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T251WBearing,roller,thrust

The Timken Corporation · NSN 3110-00-117-0777 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-117-0777 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-117-0777. Primary manufacturer part number: T251W.
Features
  • Bearing,roller,thrust — FSC 3110
  • Overall Outside Diameter: 4.3750 INCHES MINIMUM AND 4.3800 INCHES MAXIMUM IN
  • Thrust Directional Capability Designation: SINGLE
  • Alignment Type: RIGID
  • Bore Diameter: 2.5080 INCHES MINIMUM AND 2.5120 INCHES MAXIMUM IN
  • Surface Finish: GROUND
  • Style Designator: TAPERED ROLLERS, BANDED OD
  • Material: STEEL OVERALL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,roller,thrust, cataloged under National Stock Number 3110-00-117-0777, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Timken Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-117-0777
Primary Part NumberT251W
Item NameBearing,roller,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Overall Outside Diameter4.3750 INCHES MINIMUM AND 4.3800 INCHES MAXIMUM IN
Thrust Directional Capability DesignationSINGLE
Alignment TypeRIGID
Bore Diameter2.5080 INCHES MINIMUM AND 2.5120 INCHES MAXIMUM IN
Surface FinishGROUND
Style DesignatorTAPERED ROLLERS, BANDED OD
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5305-00-005-36214438 INTERCHANGEABLE
Screw,shoulder
Roller Bearing Co of America, Inc Div Pic Design
3110-00-156-1833 INTERCHANGEABLE
Bearing,ball,thrust
4730-00-287-1701118807 INTERCHANGEABLE
Tee,tube
Navistar Intl Corp Truck Br Ohio Plant
5330-00-364-4983850701 INTERCHANGEABLE
Felt,mechanical,preformed
Dana Off Highway Products, Llc
2940-00-406-70904438X INTERCHANGEABLE
Filter Element,intake Air Cleane
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
3120-01-293-52809-086-100088 INTERCHANGEABLE
Bearing,washer,thrust
Grove U.s. Llc Dba Grove Us Llc
4930-01-398-1688 INTERCHANGEABLE
Lubricating Gun,handheld
5120-01-399-9306 INTERCHANGEABLE
Punch,prick
Cross-Reference Index
Part NumberManufacturer
T251W PRIMARY The Timken Corporation (USA)
251W The Timken Corporation (USA)
T251W Crane Carrier Company, Llc (USA)
T251W Continental Emsco Co Skagit Products Div (USA)
5555785 PRIMARY Continental Emsco Co Skagit Products Div (USA)
370191968 Davies Associates (USA)
4438 Gunnebo Johnson Corporation Div Gunnebo Industries, Inc. (USA)
Related Parts
5305-00-005-3621INTERCHANGEABLE
SCREW,SHOULDER
4438
3110-00-156-1833INTERCHANGEABLE
BEARING,BALL,THRUST
4730-00-287-1701INTERCHANGEABLE
TEE,TUBE
118807
5330-00-364-4983INTERCHANGEABLE
FELT,MECHANICAL,PREFORMED
850701
2940-00-406-7090INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
4438X
3120-01-293-5280INTERCHANGEABLE
BEARING,WASHER,THRUST
9-086-100088
4930-01-398-1688INTERCHANGEABLE
LUBRICATING GUN,HANDHELD
5120-01-399-9306INTERCHANGEABLE
PUNCH,PRICK

Frequently Asked Questions

What is NSN 3110-00-117-0777?

NSN 3110-00-117-0777 is a Bearing,roller,thrust, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-117-0777?

NSN 3110-00-117-0777 has 7 cross-referenced part numbers: T251W (The Timken Corporation), 251W (The Timken Corporation), T251W (Crane Carrier Company, Llc), T251W (Continental Emsco Co Skagit Products Div), 5555785 (Continental Emsco Co Skagit Products Div) and 2 more.

What NSN replaces 3110-00-117-0777?

There are 8 known substitutes for 3110-00-117-0777: 5305-00-005-3621, 3110-00-156-1833, 4730-00-287-1701 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T251W?

Key specifications for T251W: Overall Outside Diameter: 4.3750 INCHES MINIMUM AND 4.3800 INCHES MAXIMUM IN; Special Features: W/OIL HOLE IN BAND ALSO RADIUS AT OBRE CHAMFER 1/32 IN. BY 45 DEG IN; Overall Height: 1.0575 INCHES MINIMUM AND 1.0675 INCHES MAXIMUM IN; Thrust Directional Capability Designation: SINGLE. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-117-0777 still in active supply?

NSN 3110-00-117-0777 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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