PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1B3948Cup,tapered Roller Bearing

Caterpillar Inc Div Caterpillar Defense · NSN 3110-00-100-0350 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0350 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0350. Primary manufacturer part number: 1B3948.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • 7 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-100-0350, 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. This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCup,tapered Roller Bearing
FSC / FSG3110 — No Item Name Available (FSG 31)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083); Tyson Bearing Co Div Skf Industries Inc (CAGE 61220); General Motors Llc Dba General Motors Llc (CAGE 7X677); Federal-Mogul Corp Government Sales Dept (CAGE 01212); The Timken Corporation (CAGE 60038)
Technical Specifications
ParameterValue
NSN3110-00-100-0350
Primary Part Number1B3948
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-154-13781930 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5340-00-166-633552055 INTERCHANGEABLE
Deflector,dirt and Liquid
Honeywell International Inc. Div Aerospace - Torrance
5910-00-172-98041930 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Gifft T H Co Inc
4730-00-278-56567600015 INTERCHANGEABLE
Fitting,lubrication
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
5920-00-538-22841930 INTERCHANGEABLE
Fuseholder,block
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5950-00-647-5048520-55 INTERCHANGEABLE
Transformer,power
Entron Industries Limited Partnership Dba Entron Industries Property Div
1650-00-698-6535 INTERCHANGEABLE
Lens Assembly,reticle
2540-00-788-5637ATPD-2349 TYPE III INTERCHANGEABLE
Mirror Assembly,rearview
U S Army Tank Automotive Command Amsta-Im-Mm
5950-00-806-2915368215-5 INTERCHANGEABLE
Transformer,radio Frequency
Raytheon Company
4820-01-026-088013226E8559 INTERCHANGEABLE
Valve,angle
Cecom Lr Center
Cross-Reference Index
Part NumberManufacturer
1B3948 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
1930 Tyson Bearing Co Div Skf Industries Inc (USA)
120733 General Motors Llc Dba General Motors Llc (USA)
1930 PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
1930 PRIMARY The Timken Corporation (USA)
52055 PRIMARY Am General Llc (USA)
120733 General Motors Corp (USA)
Related Parts
5330-00-154-1378INTERCHANGEABLE
SEAL,PLAIN ENCASED
1930
5340-00-166-6335INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
52055
5910-00-172-9804INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
1930
4730-00-278-5656INTERCHANGEABLE
FITTING,LUBRICATION
7600015
5920-00-538-2284INTERCHANGEABLE
FUSEHOLDER,BLOCK
1930
5950-00-647-5048INTERCHANGEABLE
TRANSFORMER,POWER
520-55
1650-00-698-6535INTERCHANGEABLE
LENS ASSEMBLY,RETICLE
2540-00-788-5637INTERCHANGEABLE
MIRROR ASSEMBLY,REARVIEW
ATPD-2349 TYPE III
5950-00-806-2915INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
368215-5
4820-01-026-0880INTERCHANGEABLE
VALVE,ANGLE
13226E8559
5950-01-037-0860INTERCHANGEABLE
REACTOR
1-930
7420-01-051-5753INTERCHANGEABLE
CALCULATOR,ELECTRONIC

Frequently Asked Questions

What is NSN 3110-00-100-0350?

NSN 3110-00-100-0350 is a Cup,tapered Roller Bearing, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-100-0350?

NSN 3110-00-100-0350 has 7 cross-referenced part numbers: 1B3948 (Caterpillar Inc Div Caterpillar Defense), 1930 (Tyson Bearing Co Div Skf Industries Inc), 120733 (General Motors Llc Dba General Motors Llc), 1930 (Federal-Mogul Corp Government Sales Dept), 1930 (The Timken Corporation) and 2 more.

What NSN replaces 3110-00-100-0350?

There are 12 known substitutes for 3110-00-100-0350: 5330-00-154-1378, 5340-00-166-6335, 5910-00-172-9804 and 9 more. Verify interchangeability with system specifications before substitution.

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