PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RBPG-3ABearing,plain,self-Aligning

Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc · NSN 3120-01-197-8189 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-197-8189 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-197-8189. Primary manufacturer part number: RBPG-3A.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Outer Member Width: 0.2130 INCHES MINIMUM AND 0.2230 INCHES MAXIMUM IN
  • Inner Member Width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
  • Static Radial Load Rating: 2350 POUNDS LBS
  • Outer Member Outside Diameter: 0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OUTER RACE MEMBER
  • Style Designator: WITHOUT INSERT OR LINER
  • Bore Diameter: 0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Outer Race Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-197-8189, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-01-197-8189
Primary Part NumberRBPG-3A
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRadial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc
StatusACTIVE
Outer Member Width0.2130 INCHES MINIMUM AND 0.2230 INCHES MAXIMUM IN
Inner Member Width0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
Static Radial Load Rating2350 POUNDS LBS
Outer Member Outside Diameter0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OUTER RACE MEMBER
Style DesignatorWITHOUT INSERT OR LINER
Bore Diameter0.1895 INCHES MINIMUM AND 0.1900 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RACE MEMBER
MaterialSTEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER
Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Surface TreatmentCADMIUM OUTER RACE MEMBER
Lubrication FeatureGROOVE AND PERFORATION INNER MEMBER
Lubrication FeatureGROOVE AND PERFORATION OUTER RACE MEMBER
Surface TreatmentCHROMIUM INNER MEMBER
Specification/standard Data26512-GB14C MANUFACTURERS SPECIFICATION CONTROL
Surface Treatment Document and ClassificationQQ-C-320,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
Hardness Rating56.0 ROCKWELL C MAXIMUM INNER MEMBER
Material Document and ClassificationSAE ASSN STD 1ST MATERIAL RESPONSE INNER MEMBER
MaterialLUBRICANT DRY FILM AND GREASE LUBRICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5975-00-273-0788150-0050-00 INTERCHANGEABLE
Bushing,strain Relief,cable
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
2990-00-375-98105129737 INTERCHANGEABLE
Governor,diesel Engine
Rolls-Royce Solutions America Inc
5845-00-644-458855181 INTERCHANGEABLE
Computer,sonar Data
Naval Ship Systems Command
2540-01-413-698557K4152 INTERCHANGEABLE
Cover,fitted,vehicular Cab
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
RBPG-3A PRIMARY Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc (USA)
G-B14C-3 PRIMARY U S Bearings (USA)
LHBA-3G PRIMARY Roller Bearing Company of America, Inc. (USA)
GB14C3 Northrop Grumman Systems Corporation (USA)
HSBG-3-11 PRIMARY Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
55181 PRIMARY Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
HSBG3SP13 PRIMARY New Hampshire Ball Bearings Inc Div Astro Division (USA)
Related Parts
5975-00-273-0788INTERCHANGEABLE
BUSHING,STRAIN RELIEF,CABLE
150-0050-00
2990-00-375-9810INTERCHANGEABLE
GOVERNOR,DIESEL ENGINE
5129737
5845-00-644-4588INTERCHANGEABLE
COMPUTER,SONAR DATA
55181
2540-01-413-6985INTERCHANGEABLE
COVER,FITTED,VEHICULAR CAB
57K4152

Frequently Asked Questions

What is NSN 3120-01-197-8189?

NSN 3120-01-197-8189 is a Bearing,plain,self-Aligning, manufactured by Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-197-8189?

NSN 3120-01-197-8189 has 7 cross-referenced part numbers: RBPG-3A (Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc), G-B14C-3 (U S Bearings), LHBA-3G (Roller Bearing Company of America, Inc.), GB14C3 (Northrop Grumman Systems Corporation), HSBG-3-11 (Sargent Aerospace & Defense, Llc Dba Kahr Bearings) and 2 more.

What NSN replaces 3120-01-197-8189?

There are 4 known substitutes for 3120-01-197-8189: 5975-00-273-0788, 2990-00-375-9810, 5845-00-644-4588 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RBPG-3A?

Key specifications for RBPG-3A: Outer Member Width: 0.2130 INCHES MINIMUM AND 0.2230 INCHES MAXIMUM IN; Inner Member Width: 0.2760 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN; Static Radial Load Rating: 2350 POUNDS LBS; Outer Member Outside Diameter: 0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN. 20 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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