PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

681946-1Bearing,ball,annular

Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings · NSN 3110-01-025-6811 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-025-6811 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-025-6811. Primary manufacturer part number: 681946-1.
Features
  • Bearing,ball,annular — FSC 3110
  • Material: STEEL COMP E52100 BALL
  • Material: COPPER ALLOY RETAINER
  • Material: STEEL COMP E52100 OUTER RING
  • Surface Finish: GROUND
  • Contact Angle: 25.0 DEGREES MAXIMUM
  • Retainer Fabrication Method: MACHINED
  • Lubrication Material: LUBRICANT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Ball construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-01-025-6811, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-025-6811
Primary Part Number681946-1
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerIndustrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings
StatusACTIVE
MaterialSTEEL COMP E52100 BALL
MaterialCOPPER ALLOY RETAINER
MaterialSTEEL COMP E52100 OUTER RING
Surface FinishGROUND
Contact Angle25.0 DEGREES MAXIMUM
Retainer Fabrication MethodMACHINED
Lubrication MaterialLUBRICANT
Load DirectionANGULAR
Bore ShapeSTRAIGHT
Internal Fit-Up DesignationLOOSE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 INNER RING
Style DesignatorCOUNTERBORED OUTER RING, NON-SEPARABLE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE BALL
Bore Diameter1.5746 INCHES MINIMUM AND 1.5748 INCHES MAXIMUM IN
Overall Outside Diameter2.6769 INCHES MINIMUM AND 2.6772 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-005-2524920011-16 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
2810-00-119-064013842 INTERCHANGEABLE
Tube
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5970-00-420-309513842 INTERCHANGEABLE
Insulator,plate
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5970-00-562-3937 INTERCHANGEABLE
Insulator,strain
1660-00-670-104513842 INTERCHANGEABLE
Parts Kit,transduce
Hamilton Sundstrand Corporation Dba Collins Aerospace
5340-01-728-061613-842 INTERCHANGEABLE
Magnet,permanent
Konrad Marine Inc Div Konrad Marine
Cross-Reference Index
Part NumberManufacturer
V0L085A General Motors Corp Delco Moraine Ndh Div (USA)
3110PL0965240 Jednolity Indeks Materialowy - Uniform Material Index (POL)
681946-1 Fag Bearings Corporation (USA)
13842 Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
681946-1 Honeywell International Inc. Div Aerospace - Torrance (USA)
681946-1 PRIMARY Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
B7008C5M Fag Bearings Corporation (USA)
2MM9108WIMBR Timken Co Div the Timken Company (USA)
681946-1 Skf Usa Inc. (USA)
7108KR ABEC5 BRONZE CAGE Skf Usa Inc. (USA)
Related Parts
5950-00-005-2524INTERCHANGEABLE
COIL,RADIO FREQUENCY
920011-16
2810-00-119-0640INTERCHANGEABLE
TUBE
13842
5970-00-420-3095INTERCHANGEABLE
INSULATOR,PLATE
13842
5970-00-562-3937INTERCHANGEABLE
INSULATOR,STRAIN
1660-00-670-1045INTERCHANGEABLE
PARTS KIT,TRANSDUCE
13842
5340-01-728-0616INTERCHANGEABLE
MAGNET,PERMANENT
13-842

Frequently Asked Questions

What is NSN 3110-01-025-6811?

NSN 3110-01-025-6811 is a Bearing,ball,annular, manufactured by Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-025-6811?

NSN 3110-01-025-6811 has 10 cross-referenced part numbers: V0L085A (General Motors Corp Delco Moraine Ndh Div), 3110PL0965240 (Jednolity Indeks Materialowy - Uniform Material Index), 681946-1 (Fag Bearings Corporation), 13842 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings), 681946-1 (Honeywell International Inc. Div Aerospace - Torrance) and 5 more.

What NSN replaces 3110-01-025-6811?

There are 6 known substitutes for 3110-01-025-6811: 5950-00-005-2524, 2810-00-119-0640, 5970-00-420-3095 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 681946-1?

Key specifications for 681946-1: Material: STEEL COMP E52100 BALL; Material: COPPER ALLOY RETAINER; Material: STEEL COMP E52100 OUTER RING; Surface Finish: GROUND. 18 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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