PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8B7946Bearing,ball,annular

Caterpillar Inc Div Caterpillar Defense · NSN 3110-00-155-6720 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-6720 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-6720. Primary manufacturer part number: 8B7946.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 45.00 MILLIMETERS NOMINAL MM
  • Bore Shape: STRAIGHT
  • Load Direction: RADIAL
  • Lubrication Material: GREASE
  • Surface Finish: GROUND
  • Shield Quantity: 2
  • Lubrication Material Document and Classification: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-6720, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-155-6720
Primary Part Number8B7946
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Bore Diameter45.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
Load DirectionRADIAL
Lubrication MaterialGREASE
Surface FinishGROUND
Shield Quantity2
Lubrication Material Document and ClassificationDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Standard Tolerance DesignationABEC NO.1
Internal Fit-Up DesignationSTANDARD
MaterialSTEEL OUTER RING
MaterialSTEEL BALL
MaterialSTEEL SHIELD
Style DesignatorLOADING GROOVE, NON-SEPARABLE
MaterialSTEEL INNER RING
Overall Outside Diameter85.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-234-5141 INTERCHANGEABLE
Drill,twist
5930-00-259-8816M554 INTERCHANGEABLE
Switch,thermostatic
Way Wolff Associates Inc
4320-00-821-17657220 INTERCHANGEABLE
Pump,centrifugal
WS Darley & Co Div Ohler Pump
6250-00-869-699625-08-1 INTERCHANGEABLE
Lampholder
Lighting Components and Design Incorporated Dba Lc&d
4030-00-918-6089 INTERCHANGEABLE
Swaging Sleeve,wire Rope
5330-01-013-311925081 INTERCHANGEABLE
Seal,special
Williams International Co., L.l.c.
4730-01-024-8613 INTERCHANGEABLE
Flange,pipe
5950-01-092-2740010-2706-001 INTERCHANGEABLE
Transformer,audio Frequency
Larscom Incorporated
5935-01-123-44966534 INTERCHANGEABLE
Connector,receptacle,electrical
Armel De Llc Dba Armel Electronics
5342-01-167-4927 INTERCHANGEABLE
Retainer,adapter
Cross-Reference Index
Part NumberManufacturer
8B7946 Caterpillar Inc Div Caterpillar Defense (USA)
B186F Bay City Shovels, Inc (USA)
0210713 Agco Corp Parts Opn (USA)
209MFF Skf Usa Inc. (USA)
6534 Clayton Manufacturing Company (USA)
3110PL0670286 Jednolity Indeks Materialowy - Uniform Material Index (POL)
209WDD Timken Co Div the Timken Company (USA)
210713 Itt Goulds Pumps, Inc. (USA)
186F Bay City Shovels, Inc (USA)
77209 General Motors Corp Delco Moraine Ndh Div (USA)
25081 Kalmar AC Inc (USA)
MT209PP Fag Bearings Corporation (USA)
B198F Bay City Shovels, Inc (USA)
77209 Hyster-Yale Group, Inc. Dba Yale Materials Handling (USA)
A-A-59584 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
77209 General Motors Corp (USA)
AA59584-109JCBE Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
1209MFF Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
B166F Bay City Shovels, Inc (USA)
M554 Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic (USA)
Related Parts
5133-00-234-5141INTERCHANGEABLE
DRILL,TWIST
5930-00-259-8816INTERCHANGEABLE
SWITCH,THERMOSTATIC
M554
4320-00-821-1765INTERCHANGEABLE
PUMP,CENTRIFUGAL
7220
6250-00-869-6996INTERCHANGEABLE
LAMPHOLDER
25-08-1
4030-00-918-6089INTERCHANGEABLE
SWAGING SLEEVE,WIRE ROPE
5330-01-013-3119INTERCHANGEABLE
SEAL,SPECIAL
25081
4730-01-024-8613INTERCHANGEABLE
FLANGE,PIPE
5950-01-092-2740INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
010-2706-001
5935-01-123-4496INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
6534
5342-01-167-4927INTERCHANGEABLE
RETAINER,ADAPTER
3455-01-236-7923INTERCHANGEABLE
CUTTER,MILLING,END
25081
5310-01-269-4365INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 3110-00-155-6720?

NSN 3110-00-155-6720 is a Bearing,ball,annular, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-6720?

NSN 3110-00-155-6720 has 25 cross-referenced part numbers: 8B7946 (Caterpillar Inc Div Caterpillar Defense), B186F (Bay City Shovels, Inc), 0210713 (Agco Corp Parts Opn), 209MFF (Skf Usa Inc.), 6534 (Clayton Manufacturing Company) and 20 more.

What NSN replaces 3110-00-155-6720?

There are 12 known substitutes for 3110-00-155-6720: 5133-00-234-5141, 5930-00-259-8816, 4320-00-821-1765 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8B7946?

Key specifications for 8B7946: Bore Diameter: 45.00 MILLIMETERS NOMINAL MM; Bore Shape: STRAIGHT; Load Direction: RADIAL; Lubrication Material: GREASE. 16 total characteristics are documented in the Federal Logistics Information System.

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