PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40123Bearing,ball,annular

Mpb Corporation Dba Mpb Corp · NSN 3110-00-583-7998 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-583-7998 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-583-7998. Primary manufacturer part number: 40123.
Features
  • Bearing,ball,annular — FSC 3110
  • Standard Tolerance Designation: ABEC NO.5
  • Material Document and Classification: SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
  • Material: STEEL COMP E52100 OUTER RING
  • Material: COPPER ALLOY RETAINER
  • Material: STEEL COMP E52100 BALL
  • Material Document and Classification: SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE BALL
  • Material Document and Classification: SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-583-7998, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-583-7998
Primary Part Number40123
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMpb Corporation Dba Mpb Corp
StatusACTIVE
Standard Tolerance DesignationABEC NO.5
Material Document and ClassificationSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING
MaterialSTEEL COMP E52100 OUTER RING
MaterialCOPPER ALLOY RETAINER
MaterialSTEEL COMP E52100 BALL
Material Document and ClassificationSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE BALL
Material Document and ClassificationSAE 52100 ASSN STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 INNER RING
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Retainer Fabrication MethodMACHINED
Bore ShapeSTRAIGHT
Load DirectionRADIAL
Bore Diameter17.0 MILLIMETERS NOMINAL MM
Surface FinishGROUND
Internal Clearance0.0010 INCHES MINIMUM RADIAL AND 0.0014 INCHES MAXIMUM RADIAL IN
Overall Outside Diameter40.0 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1620-00-005-37424012-3 INTERCHANGEABLE
Parts Kit,actuator
The Boeing Company Div Defense
5950-00-491-3844 INTERCHANGEABLE
Saturable Reactor
2530-00-624-867940123 INTERCHANGEABLE
Shaft Asy
Trw Inc Trw Commercial Steering Div
5315-01-094-0054 INTERCHANGEABLE
Pin
6240-01-475-508540123 INTERCHANGEABLE
Lamp,fluorescent
Technical Consumer Products, Inc.
5310-01-533-616192147A430 INTERCHANGEABLE
Washer,split
Mcmaster-Carr Supply Co
8465-01-565-401040123 INTERCHANGEABLE
Hydration System
Camelbak Products, Llc Dba Camelbak
Cross-Reference Index
Part NumberManufacturer
40123 PRIMARY Mpb Corporation Dba Mpb Corp (USA)
40123 PRIMARY New Hampshire Ball Bearings Inc Div Hitech Division (USA)
40123 Hamilton Sundstrand Corporation (USA)
WD3203ES5729FT General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
1620-00-005-3742INTERCHANGEABLE
PARTS KIT,ACTUATOR
4012-3
5950-00-491-3844INTERCHANGEABLE
SATURABLE REACTOR
2530-00-624-8679INTERCHANGEABLE
SHAFT ASY
40123
5315-01-094-0054INTERCHANGEABLE
PIN
6240-01-475-5085INTERCHANGEABLE
LAMP,FLUORESCENT
40123
5310-01-533-6161INTERCHANGEABLE
WASHER,SPLIT
92147A430
8465-01-565-4010INTERCHANGEABLE
HYDRATION SYSTEM
40123

Frequently Asked Questions

What is NSN 3110-00-583-7998?

NSN 3110-00-583-7998 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 3110-00-583-7998?

NSN 3110-00-583-7998 has 4 cross-referenced part numbers: 40123 (Mpb Corporation Dba Mpb Corp), 40123 (New Hampshire Ball Bearings Inc Div Hitech Division), 40123 (Hamilton Sundstrand Corporation), WD3203ES5729FT (General Motors Corp Delco Moraine Ndh Div).

What NSN replaces 3110-00-583-7998?

There are 7 known substitutes for 3110-00-583-7998: 1620-00-005-3742, 5950-00-491-3844, 2530-00-624-8679 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40123?

Key specifications for 40123: Standard Tolerance Designation: ABEC NO.5; Material Document and Classification: SAE 52100 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING; Material: STEEL COMP E52100 OUTER RING; Material: COPPER ALLOY RETAINER. 17 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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