PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27640-4GBearing,ball,airframe

Sae International Dba Sae International · NSN 3110-01-174-8296 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-174-8296 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-174-8296. Primary manufacturer part number: MS27640-4G.
Features
  • Bearing,ball,airframe — FSC 3110
  • Seal Quantity: 2
  • Alignment Type: RIGID
  • Lubrication Material: GREASE
  • Bearing Seal Type: CONTACT
  • Inner Ring Width: 0.4790 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN
  • Standard Tolerance Designation: ABEC NO.5
  • Outer Ring Width: 0.3300 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Inner Ring construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-174-8296, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-174-8296
Primary Part NumberMS27640-4G
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Seal Quantity2
Alignment TypeRIGID
Lubrication MaterialGREASE
Bearing Seal TypeCONTACT
Inner Ring Width0.4790 INCHES MINIMUM AND 0.4840 INCHES MAXIMUM IN
Standard Tolerance DesignationABEC NO.5
Outer Ring Width0.3300 INCHES MINIMUM AND 0.3350 INCHES MAXIMUM IN
Load DirectionRADIAL
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialSTEEL COMP E52100 INNER RING
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
MaterialSTEEL COMP E52100 BALL
MaterialSTEEL COMP E52100 OUTER RING
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialPLASTIC POLYTETRAFLUOROETHYLENE AND GLASS FIBER SEAL
Overall Outside Diameter0.9009 INCHES MINIMUM AND 0.9014 INCHES MAXIMUM IN
Bore Diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3110-00-023-4022MS27640-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-023-4799MS27640-3 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-023-4810MS27640-3A INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-023-6669MS27640-4 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-023-7007MS27640-5 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-023-7979MS27640-6 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-027-3401MS27640-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4318KS8 INTERCHANGEABLE
Bearing,ball,airframe
Fag Bearings Corporation
3110-00-801-0316BACB10FT04JP INTERCHANGEABLE
Bearing,ball,airframe
The Boeing Company Div Defense
3110-01-133-9539MS27640-5R INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
KP4FS428 Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings (USA)
KP4 E6531 Timken Co Div the Timken Company (USA)
MS27640-4G Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27640-4G PRIMARY Sae International Dba Sae International (USA)
BACB10A689 The Boeing Company Div Defense (USA)
LLKP-4 Skf Usa Inc. (USA)
KP4FS428 Timken Co Div the Timken Company (USA)
AS27640 Sae International Dba Sae International (USA)
Related Parts
3110-00-023-4022INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-10
3110-00-023-4799INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-3
3110-00-023-4810INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-3A
3110-00-023-6669INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-4
3110-00-023-7007INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-5
3110-00-023-7979INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-6
3110-00-027-3401INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-8
3110-00-142-4318INTERCHANGEABLE
BEARING,BALL,AIRFRAME
KS8
3110-00-801-0316INTERCHANGEABLE
BEARING,BALL,AIRFRAME
BACB10FT04JP
3110-01-133-9539INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27640-5R

Frequently Asked Questions

What is NSN 3110-01-174-8296?

NSN 3110-01-174-8296 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-174-8296?

NSN 3110-01-174-8296 has 8 cross-referenced part numbers: KP4FS428 (Industrial Tectonics Bearings Corporation Dba Rbc Bearings Inc Div Industrial Tectonics Bearings), KP4 E6531 (Timken Co Div the Timken Company), MS27640-4G (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27640-4G (Sae International Dba Sae International), BACB10A689 (The Boeing Company Div Defense) and 3 more.

What NSN replaces 3110-01-174-8296?

There are 10 known substitutes for 3110-01-174-8296: 3110-00-023-4022, 3110-00-023-4799, 3110-00-023-4810 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27640-4G?

Key specifications for MS27640-4G: Seal Quantity: 2; Alignment Type: RIGID; Lubrication Material: GREASE; Bearing Seal Type: CONTACT. 18 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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