PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27641-4RBearing,ball,airframe

Sae International Dba Sae International · NSN 3110-01-123-2324 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-123-2324 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-123-2324. Primary manufacturer part number: MS27641-4R.
Features
  • Bearing,ball,airframe — FSC 3110
  • Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
  • Load Direction: RADIAL
  • Inner Ring Width: 0.2810 INCHES NOMINAL IN
  • Outer Ring Width: 0.2190 INCHES NOMINAL IN
  • Lubrication Material: GREASE
  • Bearing Seal Type: CONTACT
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E51100 or Steel Comp E52100 Ball construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-123-2324, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-01-123-2324
Primary Part NumberMS27641-4R
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Load DirectionRADIAL
Inner Ring Width0.2810 INCHES NOMINAL IN
Outer Ring Width0.2190 INCHES NOMINAL IN
Lubrication MaterialGREASE
Bearing Seal TypeCONTACT
Seal Quantity2
Bore Diameter0.2500 INCHES NOMINAL IN
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 BALL
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
Surface Treatment Document and ClassificationQQ-P-416,TY 21,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialSTEEL COMP E52100 INNER RING
MaterialPLASTIC POLYTETRAFLUOROETHYLENE AND GLASS FIBER SEAL
Material Document and ClassificationAMS 3652 ASSN STD 1ST MATERIAL RESPONSE OR AMS 3666 ASSN STD 1ST MATERIAL RESPONSE AND AMS 3666 ASSN STD 2ND MATERIAL RESPONSE SEAL
Overall Outside Diameter0.7500 INCHES NOMINAL IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
MaterialSTEEL CORROSION RESISTING RETAINER
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-001-1938MS27641-20RG INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-027-4028MS27641-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-027-7423 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-027-8142 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-027-8758MS27641-3 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-030-3381AS27641-4 INTERCHANGEABLE
Bearing,ball,airframe
The Boeing Company Div Defense
3110-00-034-5257MS27641-6 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-0440MS27641-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-01-037-1256MS24641-12G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3120-01-111-1099350587-1 INTERCHANGEABLE
Bushing,sleeve
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
MS27641-4R PRIMARY Sae International Dba Sae International (USA)
MS27641-4R Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS27641 Sae International Dba Sae International (USA)
MS27641-4R Society of Automotive Engineers Inc (USA)
AS27641 Society of Automotive Engineers Inc (USA)
Related Parts
3110-00-001-1938INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-20RG
3110-00-027-4028INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-10
3110-00-027-7423INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-027-8142INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-027-8758INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-3
3110-00-030-3381INTERCHANGEABLE
BEARING,BALL,AIRFRAME
AS27641-4
3110-00-034-5257INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-6
3110-00-042-0440INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-8
3110-01-037-1256INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS24641-12G
3120-01-111-1099INTERCHANGEABLE
BUSHING,SLEEVE
350587-1
3110-01-123-2323INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-5R
3110-01-339-8191INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27641-10G

Frequently Asked Questions

What is NSN 3110-01-123-2324?

NSN 3110-01-123-2324 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 3110-01-123-2324?

NSN 3110-01-123-2324 has 5 cross-referenced part numbers: MS27641-4R (Sae International Dba Sae International), MS27641-4R (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AS27641 (Sae International Dba Sae International), MS27641-4R (Society of Automotive Engineers Inc), AS27641 (Society of Automotive Engineers Inc).

What NSN replaces 3110-01-123-2324?

There are 12 known substitutes for 3110-01-123-2324: 3110-00-001-1938, 3110-00-027-4028, 3110-00-027-7423 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27641-4R?

Key specifications for MS27641-4R: Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS; Load Direction: RADIAL; Inner Ring Width: 0.2810 INCHES NOMINAL IN. 23 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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