PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS9461-11Ball,bearing

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 3110-00-138-0123 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-138-0123 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-138-0123. Primary manufacturer part number: MS9461-11.
Features
  • Ball,bearing — FSC 3110
  • Rolling Element Diameter: 0.3750 INCHES NOMINAL IN
  • Material: STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR BALLS, GRADE 50
  • Style Designator: BALL
  • Material Document and Classification: AMS7445 ASSN STD ALL MATERIAL RESPONSES OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 440A or Steel Comp 440b or Steel Comp 440c Overall construction
General Description

The Ball,bearing, cataloged under National Stock Number 3110-00-138-0123, is classified within Federal Supply Class 3110 (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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3110-00-138-0123
Primary Part NumberMS9461-11
Item NameBall,bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Rolling Element Diameter0.3750 INCHES NOMINAL IN
MaterialSTEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR BALLS, GRADE 50
Style DesignatorBALL
Material Document and ClassificationAMS7445 ASSN STD ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-183-9164MS19060-4818 INTERCHANGEABLE
Ball,bearing
American Society for Testing and Materials Dba Astm International
Cross-Reference Index
Part NumberManufacturer
MS9461-11 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
10107340 Nimikkeistokeskus Ncb Finland (FIN)
MS134360 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3110-00-183-9164INTERCHANGEABLE
BALL,BEARING
MS19060-4818

Frequently Asked Questions

What is NSN 3110-00-138-0123?

NSN 3110-00-138-0123 is a Ball,bearing, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-138-0123?

NSN 3110-00-138-0123 has 3 cross-referenced part numbers: MS9461-11 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 10107340 (Nimikkeistokeskus Ncb Finland), MS134360 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3110-00-138-0123?

There is 1 known substitute for 3110-00-138-0123: 3110-00-183-9164. Verify interchangeability with system specifications before substitution.

What are the specifications of MS9461-11?

Key specifications for MS9461-11: Special Features: METALLIC HARDNESS RATING ROCKWELL C MIN 55.0 IN. AND MAX 64.0 IN. IN; Rolling Element Diameter: 0.3750 INCHES NOMINAL IN; Material: STEEL COMP 440A OR STEEL COMP 440B OR STEEL COMP 440C OVERALL A; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR BALLS, GRADE 50. 6 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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