PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R125Bearing,roller,cylindrical

Fag Bearings Corporation · NSN 3110-00-554-3635 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-3635 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-3635. Primary manufacturer part number: R125.
Features
  • Bearing,roller,cylindrical — FSC 3110
  • Retainer Fabrication Method: PRESSED
  • Locating Feature: TWO DIRECTION
  • Material: STEEL OVERALL
  • Style Designator: SINGLE ROW, TWO-DIRECTION LOCATING, TWO LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
  • Bore Shape: STRAIGHT
  • Surface Finish: GROUND
  • Internal Fit-Up Designation: STANDARD
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-554-3635, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 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
NSN3110-00-554-3635
Primary Part NumberR125
Item NameBearing,roller,cylindrical
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusACTIVE
Retainer Fabrication MethodPRESSED
Locating FeatureTWO DIRECTION
MaterialSTEEL OVERALL
Style DesignatorSINGLE ROW, TWO-DIRECTION LOCATING, TWO LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
Bore ShapeSTRAIGHT
Surface FinishGROUND
Internal Fit-Up DesignationSTANDARD
Bore Diameter25.00 MILLIMETERS NOMINAL MM
Overall Outside Diameter52.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5905-00-101-7991762032PT175 INTERCHANGEABLE
Resistor,fixed,wire Wound
Westinghouse Electric Corp
3110-00-159-9332R125 INTERCHANGEABLE
Bearing,roller,cylindrical
Fag Bearings Corporation
5342-00-371-6078F927 INTERCHANGEABLE
Boot,master Cylinder
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5935-01-030-4685 INTERCHANGEABLE
Connector,plug,electrical
5330-01-352-0662R1-25 INTERCHANGEABLE
Seal,nonmetallic Strip
Valad Electric Heating Corp.
4130-01-523-5001R125 INTERCHANGEABLE
Condensing Unit,refrigerating
Koolant Koolers, Inc Dba Schreiber Engineering Corp Div
Cross-Reference Index
Part NumberManufacturer
BU1205Z General Motors Corp (USA)
R125LL Fag Bearings Corporation (USA)
R125 PRIMARY Fag Bearings Corporation (USA)
BU1205Z General Motors Corp Delco Moraine Ndh Div (USA)
BU1205Z General Motors Llc Dba General Motors Llc (USA)
Related Parts
5905-00-101-7991INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
762032PT175
3110-00-159-9332INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
R125
5342-00-371-6078INTERCHANGEABLE
BOOT,MASTER CYLINDER
F927
5935-01-030-4685INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5330-01-352-0662INTERCHANGEABLE
SEAL,NONMETALLIC STRIP
R1-25
4130-01-523-5001INTERCHANGEABLE
CONDENSING UNIT,REFRIGERATING
R125

Frequently Asked Questions

What is NSN 3110-00-554-3635?

NSN 3110-00-554-3635 is a Bearing,roller,cylindrical, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-554-3635?

NSN 3110-00-554-3635 has 5 cross-referenced part numbers: BU1205Z (General Motors Corp), R125LL (Fag Bearings Corporation), R125 (Fag Bearings Corporation), BU1205Z (General Motors Corp Delco Moraine Ndh Div), BU1205Z (General Motors Llc Dba General Motors Llc).

What NSN replaces 3110-00-554-3635?

There are 6 known substitutes for 3110-00-554-3635: 5905-00-101-7991, 3110-00-159-9332, 5342-00-371-6078 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R125?

Key specifications for R125: Retainer Fabrication Method: PRESSED; Locating Feature: TWO DIRECTION; Overall Width: 15.00 MILLIMETERS NOMINAL MM; Material: STEEL OVERALL. 11 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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