PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27645-5Bearing,ball,airframe

Sae International Dba Sae International · NSN 3110-00-042-4808 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-042-4808 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-042-4808. Primary manufacturer part number: MS27645-5.
Features
  • Bearing,ball,airframe — FSC 3110
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
  • Bearing Seal Type: CONTACT
  • Alignment Type: SELF-ALIGNING
  • Lubrication Material: GREASE
  • Self-Alignment Location: INTERNAL
  • Seal Quantity: 2
  • Inner Ring Width: 0.5580 INCHES NOMINAL IN
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,airframe, cataloged under National Stock Number 3110-00-042-4808, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-042-4808
Primary Part NumberMS27645-5
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Bearing Seal TypeCONTACT
Alignment TypeSELF-ALIGNING
Lubrication MaterialGREASE
Self-Alignment LocationINTERNAL
Seal Quantity2
Inner Ring Width0.5580 INCHES NOMINAL IN
Outer Ring Width0.3750 INCHES NOMINAL IN
Load DirectionRADIAL
Bore Diameter0.3125 INCHES NOMINAL IN
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MaterialSTEEL COMP E52100 INNER RING
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Overall Outside Diameter1.2500 INCHES NOMINAL IN
Material Document and ClassificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
MaterialSTEEL CORROSION RESISTING RETAINER
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 BALL
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-042-4803MS27645-10 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4805 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-042-4806 INTERCHANGEABLE
Bearing,ball,airframe
3110-00-042-4810MS27645-6 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-042-4823KSP6A INTERCHANGEABLE
Bearing,ball,airframe
New Hampshire Ball Bearings Inc Div Hitech Division
3110-00-042-4833MS27645-8 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-124-2374MS27645-6G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-140-9586MS27645-3AG INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4313MS27645-3G INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
3110-00-142-4315 INTERCHANGEABLE
Bearing,ball,airframe
Cross-Reference Index
Part NumberManufacturer
3103368 Embraer Aviation International (FRA)
AS27645-5 Society of Automotive Engineers Inc (USA)
3103368 Embraer S.a. (BRA)
MS27645-5 Leonardo Spa Aeronautics Division - Pomigliano D'arco Site (ITA)
KS5 Timken Co Div the Timken Company (USA)
MS27645-5 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS27645 Sae International Dba Sae International (USA)
KSP5FS464 Timken Co Div the Timken Company (USA)
KSP5 Skf Usa Inc. (USA)
3103368 Embraer Empresa Brasileira De Aeronautica Sa (BRA)
KSP5 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
KSP5FS464 Rbc Aircraft Products, Inc. (USA)
AS27645 Society of Automotive Engineers Inc (USA)
MS27645-5 Society of Automotive Engineers Inc (USA)
MS27645-5 PRIMARY Sae International Dba Sae International (USA)
Related Parts
3110-00-042-4803INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-10
3110-00-042-4805INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4806INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4810INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6
3110-00-042-4823INTERCHANGEABLE
BEARING,BALL,AIRFRAME
KSP6A
3110-00-042-4833INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-8
3110-00-124-2374INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6G
3110-00-140-9586INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-3AG
3110-00-142-4313INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-3G
3110-00-142-4315INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-316-7977INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4130612B10
3110-00-514-8569INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6AR

Frequently Asked Questions

What is NSN 3110-00-042-4808?

NSN 3110-00-042-4808 is a Bearing,ball,airframe, manufactured by Sae International Dba Sae International, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-042-4808?

NSN 3110-00-042-4808 has 15 cross-referenced part numbers: 3103368 (Embraer Aviation International), AS27645-5 (Society of Automotive Engineers Inc), 3103368 (Embraer S.a.), MS27645-5 (Leonardo Spa Aeronautics Division - Pomigliano D'arco Site), KS5 (Timken Co Div the Timken Company) and 10 more.

What NSN replaces 3110-00-042-4808?

There are 12 known substitutes for 3110-00-042-4808: 3110-00-042-4803, 3110-00-042-4805, 3110-00-042-4806 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27645-5?

Key specifications for MS27645-5: Standard Tolerance Designation: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS; Bearing Seal Type: CONTACT; Alignment Type: SELF-ALIGNING; Lubrication Material: GREASE. 25 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-042-4808 still in active supply?

NSN 3110-00-042-4808 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com