PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HSBG9-12Bearing,plain,self-Aligning

Sargent Aerospace & Defense, Llc Dba Kahr Bearings · NSN 3120-00-580-1771 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-580-1771 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-580-1771. Primary manufacturer part number: HSBG9-12.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Bore Diameter: 0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
  • Style Designator: WITHOUT INSERT OR LINER
  • Outer Member Width: 0.4320 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM IN
  • Static Radial Load Rating: 21600 POUNDS LBS
  • Outer Member Outside Diameter: 1.0932 INCHES MINIMUM AND 1.0937 INCHES MAXIMUM IN
  • Inner Member Width: 0.5570 INCHES MINIMUM AND 0.5620 INCHES MAXIMUM IN
  • 9 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-580-1771, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 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
NSN3120-00-580-1771
Primary Part NumberHSBG9-12
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Kahr Bearings
StatusACTIVE
Bore Diameter0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
Style DesignatorWITHOUT INSERT OR LINER
Outer Member Width0.4320 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM IN
Static Radial Load Rating21600 POUNDS LBS
Outer Member Outside Diameter1.0932 INCHES MINIMUM AND 1.0937 INCHES MAXIMUM IN
Inner Member Width0.5570 INCHES MINIMUM AND 0.5620 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6105-00-126-2620MG-40 INTERCHANGEABLE
Motor-Tachometer Generator
Dymanetics Inc
3110-00-151-85612BW6 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Oshkosh Defense Llc
5905-00-279-1866 INTERCHANGEABLE
Resistor,fixed,composition
4820-00-501-70863002-300 INTERCHANGEABLE
Valve,safety Relief
Superior Valve Co
2520-00-631-5908 INTERCHANGEABLE
Cone,bearing
5330-01-510-966455176 INTERCHANGEABLE
Packing Assembly
Flowserve Inc
Cross-Reference Index
Part NumberManufacturer
HSBG9-12 PRIMARY Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
GB14B9 PRIMARY U S Bearings (USA)
LHAE3G Roller Bearing Company of America, Inc. (USA)
HSBG9SP14 New Hampshire Ball Bearings Inc Div Astro Division (USA)
55176 Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
GB14B Northrop Grumman Systems Corporation (USA)
RSPG9A PRIMARY Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc (USA)
GB14B9 PRIMARY Radial Bearing Corporation Dba Radial Bearing Corp of Connecticu Div Radial Bearing Llc (USA)
GB14B9 Northrop Grumman Systems Corporation (USA)
Related Parts
6105-00-126-2620INTERCHANGEABLE
MOTOR-TACHOMETER GENERATOR
MG-40
3110-00-151-8561INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2BW6
5905-00-279-1866INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
4820-00-501-7086INTERCHANGEABLE
VALVE,SAFETY RELIEF
3002-300
2520-00-631-5908INTERCHANGEABLE
CONE,BEARING
5330-01-510-9664INTERCHANGEABLE
PACKING ASSEMBLY
55176

Frequently Asked Questions

What is NSN 3120-00-580-1771?

NSN 3120-00-580-1771 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 3120-00-580-1771?

NSN 3120-00-580-1771 has 9 cross-referenced part numbers: HSBG9-12 (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), GB14B9 (U S Bearings), LHAE3G (Roller Bearing Company of America, Inc.), HSBG9SP14 (New Hampshire Ball Bearings Inc Div Astro Division), 55176 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics) and 4 more.

What NSN replaces 3120-00-580-1771?

There are 6 known substitutes for 3120-00-580-1771: 6105-00-126-2620, 3110-00-151-8561, 5905-00-279-1866 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HSBG9-12?

Key specifications for HSBG9-12: Bore Diameter: 0.5620 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN; Style Designator: WITHOUT INSERT OR LINER; Outer Member Width: 0.4320 INCHES MINIMUM AND 0.4420 INCHES MAXIMUM IN; Static Radial Load Rating: 21600 POUNDS LBS. 6 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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