PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21233-8Bearing,plain,self-Aligning

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3120-00-825-3419 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-825-3419 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-825-3419. Primary manufacturer part number: MS21233-8.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Material: PLASTIC TETRAFLUOROETHYLENE RACE INSERT
  • Material Document and Classification: AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER
  • Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
  • Hardness Rating: 55.0 ROCKWELL C MINIMUM INNER MEMBER
  • Material: STEEL COMP 630 OUTER RACE MEMBER
  • Material: STEEL COMP 440C INNER MEMBER
  • Style Designator: WITH INSERT AND/OR LINER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Plastic Tetrafluoroethylene Race Insert construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-825-3419, 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 13 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: Active.

Technical Specifications
ParameterValue
NSN3120-00-825-3419
Primary Part NumberMS21233-8
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
StatusACTIVE
MaterialPLASTIC TETRAFLUOROETHYLENE RACE INSERT
Material Document and ClassificationAMS 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER
Material Document and ClassificationAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
Hardness Rating55.0 ROCKWELL C MINIMUM INNER MEMBER
MaterialSTEEL COMP 630 OUTER RACE MEMBER
MaterialSTEEL COMP 440C INNER MEMBER
Style DesignatorWITH INSERT AND/OR LINER
Inner Member Width0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Bore Diameter0.4995 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
Static Radial Load Rating17900 POUNDS LBS
Hardness Rating23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
Outer Member Width0.3850 INCHES MINIMUM AND 0.3950 INCHES MAXIMUM IN
Outer Member Outside Diameter0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3120-01-027-4729MS14104-8 INTERCHANGEABLE
Bearing,plain,self-Aligning
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS21233-8 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3120-01-027-4729INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
MS14104-8

Frequently Asked Questions

What is NSN 3120-00-825-3419?

NSN 3120-00-825-3419 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: active.

What are the part numbers for NSN 3120-00-825-3419?

NSN 3120-00-825-3419 has 1 cross-referenced part number: MS21233-8 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-825-3419?

There is 1 known substitute for 3120-00-825-3419: 3120-01-027-4729. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21233-8?

Key specifications for MS21233-8: Material: PLASTIC TETRAFLUOROETHYLENE RACE INSERT; Material Document and Classification: AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE INNER MEMBER; Material Document and Classification: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER; Hardness Rating: 55.0 ROCKWELL C MINIMUM INNER MEMBER. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com