PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52123Bearing,ball,annular

Mpb Corporation Dba Mpb Corp · NSN 3110-00-227-4122 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-227-4122 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-227-4122. Primary manufacturer part number: 52123.
Features
  • Bearing,ball,annular — FSC 3110
  • Material: STEEL OVERALL
  • Style Designator: LOADING GROOVE, NON-SEPARABLE
  • Bore Shape: STRAIGHT
  • Internal Fit-Up Designation: STANDARD
  • Load Direction: RADIAL
  • Bore Diameter: 6.3743 INCHES MINIMUM AND 6.3753 INCHES MAXIMUM IN
  • Surface Finish: GROUND
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-227-4122, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Mpb Corporation Dba Mpb Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN3110-00-227-4122
Primary Part Number52123
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMpb Corporation Dba Mpb Corp
StatusACTIVE
MaterialSTEEL OVERALL
Style DesignatorLOADING GROOVE, NON-SEPARABLE
Bore ShapeSTRAIGHT
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
Bore Diameter6.3743 INCHES MINIMUM AND 6.3753 INCHES MAXIMUM IN
Surface FinishGROUND
Overall Outside Diameter7.6247 INCHES MINIMUM AND 7.6257 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6105-00-186-0029 INTERCHANGEABLE
Motor,alternating Current
9540-01-138-6474 INTERCHANGEABLE
Angle,structural
5970-01-291-6997461296-1 INTERCHANGEABLE
Insulator,disk
Patriot American Solutions Llc
Cross-Reference Index
Part NumberManufacturer
52123 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
TLF102-122-1 Mpb Corporation Dba Mpb Corp (USA)
52123 PRIMARY Mpb Corporation Dba Mpb Corp (USA)
M-6201-C Timken Co Div the Timken Company (USA)
Related Parts
6105-00-186-0029INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
9540-01-138-6474INTERCHANGEABLE
ANGLE,STRUCTURAL
5970-01-291-6997INTERCHANGEABLE
INSULATOR,DISK
461296-1

Frequently Asked Questions

What is NSN 3110-00-227-4122?

NSN 3110-00-227-4122 is a Bearing,ball,annular, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-227-4122?

NSN 3110-00-227-4122 has 4 cross-referenced part numbers: 52123 (Hamilton Sundstrand Corporation Dba Collins Aerospace), TLF102-122-1 (Mpb Corporation Dba Mpb Corp), 52123 (Mpb Corporation Dba Mpb Corp), M-6201-C (Timken Co Div the Timken Company).

What NSN replaces 3110-00-227-4122?

There are 3 known substitutes for 3110-00-227-4122: 6105-00-186-0029, 9540-01-138-6474, 5970-01-291-6997. Verify interchangeability with system specifications before substitution.

What are the specifications of 52123?

Key specifications for 52123: Special Features: OUTER RING CORNER RADIUS 0.0310 IN. AND 0.1250 IN.,SELECTED CLASSIFIED AND TESTED BY THE ASSEMBLY MFR AT HIS PLANT IN; Material: STEEL OVERALL; Style Designator: LOADING GROOVE, NON-SEPARABLE; Bore Shape: STRAIGHT. 10 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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