PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LHPB-8GABearing,plain,self-Aligning

Roller Bearing Company of America, Inc. · NSN 3120-01-042-4508 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-042-4508 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-042-4508. Primary manufacturer part number: LHPB-8GA.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Material: STEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER
  • Lubrication Feature: GROOVE EXTERNAL OUTER MEMBER
  • Material: LUBRICANT DRY FILM LUBRICATION
  • Style Designator: WITHOUT INSERT OR LINER
  • Hardness Rating: 56.0 ROCKWELL C NOMINAL INNER MEMBER
  • Lubrication Feature: PERFORATION OUTER RACE MEMBER
  • Lubrication Feature: PERFORATION INNER MEMBER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 or Steel Comp 440c Inner Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-042-4508, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Roller Bearing Company of America, Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 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
NSN3120-01-042-4508
Primary Part NumberLHPB-8GA
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRoller Bearing Company of America, Inc.
StatusACTIVE
MaterialSTEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER
Lubrication FeatureGROOVE EXTERNAL OUTER MEMBER
MaterialLUBRICANT DRY FILM LUBRICATION
Style DesignatorWITHOUT INSERT OR LINER
Hardness Rating56.0 ROCKWELL C NOMINAL INNER MEMBER
Lubrication FeaturePERFORATION OUTER RACE MEMBER
Lubrication FeaturePERFORATION INNER MEMBER
Outer Member Width0.3850 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN
Outer Member Outside Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Inner Member Width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Bore Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Surface TreatmentCHROMIUM INNER MEMBER
Lubrication FeatureGROOVE INTERNAL INNER MEMBER
Surface TreatmentCADMIUM OUTER RACE MEMBER
Lubrication FeatureGROOVE INSIDE DIAMETER SURFACE OF BODY
MaterialCOPPER ALLOY OUTER RACE MEMBER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5905-00-138-5138 INTERCHANGEABLE
Resistor Network,fixed,wire Woun
2805-00-354-769955215 INTERCHANGEABLE
Line Assembly,oil
H20 Tank Inc U S Motors Div
3010-00-396-121955215 INTERCHANGEABLE
Coupling Half,shaft
Cae Usa Inc.
2825-00-671-4531 INTERCHANGEABLE
Seal Assy,plain
6105-01-166-635310510274 INTERCHANGEABLE
Winding,armature
General Dynamics Land Systems Canadacorp
5330-01-486-4559NB25025E-0250-5 INTERCHANGEABLE
Gasket
Hunt Valve Company, Inc.
Cross-Reference Index
Part NumberManufacturer
55215 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems (USA)
55215 Northrop Grumman Systems Corporation (USA)
GB14A8 Northrop Grumman Systems Corporation (USA)
GB14A8 U S Bearings (USA)
AG8SP17 New Hampshire Ball Bearings Inc Div Astro Division (USA)
KSBG8-10 Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
55215 Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
RPG-8A Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc (USA)
LHPB-8GA PRIMARY Roller Bearing Company of America, Inc. (USA)
Related Parts
5905-00-138-5138INTERCHANGEABLE
RESISTOR NETWORK,FIXED,WIRE WOUN
2805-00-354-7699INTERCHANGEABLE
LINE ASSEMBLY,OIL
55215
3010-00-396-1219INTERCHANGEABLE
COUPLING HALF,SHAFT
55215
2825-00-671-4531INTERCHANGEABLE
SEAL ASSY,PLAIN
6105-01-166-6353INTERCHANGEABLE
WINDING,ARMATURE
10510274
5330-01-486-4559INTERCHANGEABLE
GASKET
NB25025E-0250-5

Frequently Asked Questions

What is NSN 3120-01-042-4508?

NSN 3120-01-042-4508 is a Bearing,plain,self-Aligning, manufactured by Roller Bearing Company of America, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-042-4508?

NSN 3120-01-042-4508 has 9 cross-referenced part numbers: 55215 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems), 55215 (Northrop Grumman Systems Corporation), GB14A8 (Northrop Grumman Systems Corporation), GB14A8 (U S Bearings), AG8SP17 (New Hampshire Ball Bearings Inc Div Astro Division) and 4 more.

What NSN replaces 3120-01-042-4508?

There are 6 known substitutes for 3120-01-042-4508: 5905-00-138-5138, 2805-00-354-7699, 3010-00-396-1219 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LHPB-8GA?

Key specifications for LHPB-8GA: Material: STEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER; Lubrication Feature: GROOVE EXTERNAL OUTER MEMBER; Material: LUBRICANT DRY FILM LUBRICATION; Style Designator: WITHOUT INSERT OR LINER. 17 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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