PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HSBG8SBearing,plain,self-Aligning

Sargent Aerospace & Defense, Llc Dba Kahr Bearings · NSN 3120-00-054-0085 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-054-0085 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-054-0085. Primary manufacturer part number: HSBG8S.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
  • Material: STEEL COMP E52100 INNER MEMBER
  • Style Designator: WITHOUT INSERT OR LINER
  • Material: STEEL COMP 4130 OUTER RACE MEMBER
  • Bore Diameter: 0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
  • Inner Member Width: 0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Inner Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-054-0085, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Kahr Bearings. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-054-0085
Primary Part NumberHSBG8S
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Kahr Bearings
StatusACTIVE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
MaterialSTEEL COMP E52100 INNER MEMBER
Style DesignatorWITHOUT INSERT OR LINER
MaterialSTEEL COMP 4130 OUTER RACE MEMBER
Bore Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Inner Member Width0.4950 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Outer Member Outside Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Outer Member Width0.3850 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-00-554-2282HSBG8S INTERCHANGEABLE
Bearing,plain,self-Aligning
U S Bearings
Cross-Reference Index
Part NumberManufacturer
HSBG8S PRIMARY Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
HSBG-8S Leonardo Spa Aeronautics Division - Torino Site (ITA)
HSBG-8S Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA)
Related Parts
3120-00-554-2282INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
HSBG8S

Frequently Asked Questions

What is NSN 3120-00-054-0085?

NSN 3120-00-054-0085 is a Bearing,plain,self-Aligning, manufactured by Sargent Aerospace & Defense, Llc Dba Kahr Bearings, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-054-0085?

NSN 3120-00-054-0085 has 3 cross-referenced part numbers: HSBG8S (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), HSBG-8S (Leonardo Spa Aeronautics Division - Torino Site), HSBG-8S (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site).

What NSN replaces 3120-00-054-0085?

There is 1 known substitute for 3120-00-054-0085: 3120-00-554-2282. Verify interchangeability with system specifications before substitution.

What are the specifications of HSBG8S?

Key specifications for HSBG8S: Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE INNER MEMBER; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER; Material: STEEL COMP E52100 INNER MEMBER; Style Designator: WITHOUT INSERT OR LINER. 9 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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