PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KMB56-11Bearing,plain,self-Aligning

Sargent Aerospace & Defense, Llc Dba Kahr Bearings · NSN 3120-00-432-9070 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-432-9070 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-432-9070. Primary manufacturer part number: KMB56-11.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-L-46010 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
  • Inner Member Width: 1.8000 INCHES NOMINAL IN
  • Material: LUBRICANT DRY FILM LUBRICATION
  • Material Document and Classification: ST-05-501 LEAR SIEGLER INC MFR REF SINGLE MATERIAL RESPONSE OVERALL
  • Outer Member Width: 1.6000 INCHES NOMINAL IN
  • Bore Diameter: 3.5010 INCHES MINIMUM AND 3.5022 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-432-9070, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-432-9070
Primary Part NumberKMB56-11
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Kahr Bearings
StatusACTIVE
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-L-46010 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Inner Member Width1.8000 INCHES NOMINAL IN
MaterialLUBRICANT DRY FILM LUBRICATION
Material Document and ClassificationST-05-501 LEAR SIEGLER INC MFR REF SINGLE MATERIAL RESPONSE OVERALL
Outer Member Width1.6000 INCHES NOMINAL IN
Bore Diameter3.5010 INCHES MINIMUM AND 3.5022 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-647-9107 INTERCHANGEABLE
Transformer,discriminator
5330-00-973-821279041 INTERCHANGEABLE
Gasket
Cooper Machinery Services Llc
5950-01-228-1510 INTERCHANGEABLE
Reactor
Cross-Reference Index
Part NumberManufacturer
KMB56-11 PRIMARY Sargent Aerospace & Defense, Llc Dba Kahr Bearings (USA)
79041 PRIMARY Rbc Transport Dynamics Corp Div Rbc Transport Dynamics (USA)
Related Parts
5950-00-647-9107INTERCHANGEABLE
TRANSFORMER,DISCRIMINATOR
5330-00-973-8212INTERCHANGEABLE
GASKET
79041
5950-01-228-1510INTERCHANGEABLE
REACTOR

Frequently Asked Questions

What is NSN 3120-00-432-9070?

NSN 3120-00-432-9070 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 3120-00-432-9070?

NSN 3120-00-432-9070 has 2 cross-referenced part numbers: KMB56-11 (Sargent Aerospace & Defense, Llc Dba Kahr Bearings), 79041 (Rbc Transport Dynamics Corp Div Rbc Transport Dynamics).

What NSN replaces 3120-00-432-9070?

There are 3 known substitutes for 3120-00-432-9070: 5950-00-647-9107, 5330-00-973-8212, 5950-01-228-1510. Verify interchangeability with system specifications before substitution.

What are the specifications of KMB56-11?

Key specifications for KMB56-11: Material: STEEL OVERALL; Material Document and Classification: MIL-L-46010 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION; Inner Member Width: 1.8000 INCHES NOMINAL IN; Material: LUBRICANT DRY FILM LUBRICATION. 7 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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