PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21232-6Bearing,plain,self-Aligning

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-00-937-1062 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-937-1062 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-937-1062. Primary manufacturer part number: MS21232-6.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Hardness Rating: 55.0 ROCKWELL C MINIMUM INNER MEMBER
  • Outer Member Outside Diameter: 0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
  • Surface Treatment: PASSIVATE OUTER RACE MEMBER
  • Surface Treatment: PASSIVATE INNER MEMBER
  • Style Designator: WITH INSERT AND/OR LINER WITH STAKING GROOVE
  • Material: PLASTIC TETRAFLUOROETHYLENE RACE LINER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Plastic Tetrafluoroethylene Race Liner construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-937-1062, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-937-1062
Primary Part NumberMS21232-6
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Hardness Rating55.0 ROCKWELL C MINIMUM INNER MEMBER
Outer Member Outside Diameter0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN
Hardness Rating23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
Surface TreatmentPASSIVATE OUTER RACE MEMBER
Surface TreatmentPASSIVATE INNER MEMBER
Style DesignatorWITH INSERT AND/OR LINER WITH STAKING GROOVE
MaterialPLASTIC TETRAFLUOROETHYLENE RACE LINER
Outer Member Width0.3070 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN
Bore Diameter0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
Static Radial Load Rating10540 POUNDS LBS
Inner Member Width0.4040 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3120-01-006-9149MS14101-6 INTERCHANGEABLE
Bearing,plain,self-Aligning
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS21232-6 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3120-01-006-9149INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
MS14101-6

Frequently Asked Questions

What is NSN 3120-00-937-1062?

NSN 3120-00-937-1062 is a Bearing,plain,self-Aligning, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-937-1062?

NSN 3120-00-937-1062 has 1 cross-referenced part number: MS21232-6 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-937-1062?

There is 1 known substitute for 3120-00-937-1062: 3120-01-006-9149. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21232-6?

Key specifications for MS21232-6: Hardness Rating: 55.0 ROCKWELL C MINIMUM INNER MEMBER; Outer Member Outside Diameter: 0.8120 INCHES MINIMUM AND 0.8125 INCHES MAXIMUM IN; Hardness Rating: 23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER; Surface Treatment: PASSIVATE OUTER RACE MEMBER. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-937-1062 still in active supply?

NSN 3120-00-937-1062 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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