PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS27645-4Bearing,ball,airframe

Society of Automotive Engineers Inc · NSN 3110-00-042-4806 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-042-4806 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-042-4806. Primary manufacturer part number: AS27645-4.
Features
  • Bearing,ball,airframe — FSC 3110
  • Bore Diameter: 0.2500 INCHES NOMINAL IN
  • Load Direction: RADIAL
  • Inner Ring Width: 0.4840 INCHES NOMINAL IN
  • Alignment Type: SELF-ALIGNING
  • Outer Ring Width: 0.3350 INCHES NOMINAL IN
  • Seal Quantity: 2
  • Lubrication Material Document and Classification: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
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 3110-00-042-4806, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 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
NSN3110-00-042-4806
Primary Part NumberAS27645-4
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Bore Diameter0.2500 INCHES NOMINAL IN
Load DirectionRADIAL
Inner Ring Width0.4840 INCHES NOMINAL IN
Alignment TypeSELF-ALIGNING
Outer Ring Width0.3350 INCHES NOMINAL IN
Seal Quantity2
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
Self-Alignment LocationINTERNAL
Bearing Seal TypeCONTACT
Overall Outside Diameter0.9014 INCHES NOMINAL IN
MaterialSTEEL COMP E52100 OUTER RING
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE INNER RING
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
MaterialSTEEL COMP E52100 INNER RING
Material Document and ClassificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE EXPOSED SURFACES AS MOUNTED
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 BALL
MaterialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
MaterialSTEEL CORROSION RESISTING RETAINER
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES BALL
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
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
3110-00-042-4808MS27645-5 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
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
3110-00-316-79774130612B10 INTERCHANGEABLE
Bearing,ball,airframe
Rbc Aircraft Products, Inc.
Cross-Reference Index
Part NumberManufacturer
AS27645-4 Society of Automotive Engineers Inc (USA)
MS27645-4 Society of Automotive Engineers Inc (USA)
GB520EE-KSP4 Northrop Grumman Systems Corporation (USA)
9408328506 Pilatus Aircraft Ltd (CHE)
KSP4FS464 Timken Co Div the Timken Company (USA)
KSP4FS464 Rbc Aircraft Products, Inc. (USA)
940.83.28.506 Pilatus Aircraft Ltd (CHE)
AS27645 Society of Automotive Engineers Inc (USA)
KSP4SPL Skf Usa Inc. (USA)
MS27645-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KSP4 Skf Usa Inc. (USA)
KSP4 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
Related Parts
3110-00-042-4803INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-10
3110-00-042-4805INTERCHANGEABLE
BEARING,BALL,AIRFRAME
3110-00-042-4808INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-5
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
3110-00-316-7977INTERCHANGEABLE
BEARING,BALL,AIRFRAME
4130612B10
3110-00-514-8569INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-6AR
3110-01-122-6285INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MKSP2FS428

Frequently Asked Questions

What is NSN 3110-00-042-4806?

NSN 3110-00-042-4806 is a Bearing,ball,airframe, manufactured by Society of Automotive Engineers Inc, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-042-4806?

NSN 3110-00-042-4806 has 12 cross-referenced part numbers: AS27645-4 (Society of Automotive Engineers Inc), MS27645-4 (Society of Automotive Engineers Inc), GB520EE-KSP4 (Northrop Grumman Systems Corporation), 9408328506 (Pilatus Aircraft Ltd), KSP4FS464 (Timken Co Div the Timken Company) and 7 more.

What NSN replaces 3110-00-042-4806?

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

What are the specifications of AS27645-4?

Key specifications for AS27645-4: Bore Diameter: 0.2500 INCHES NOMINAL IN; Load Direction: RADIAL; Inner Ring Width: 0.4840 INCHES NOMINAL IN; Alignment Type: SELF-ALIGNING. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-042-4806 still in active supply?

NSN 3110-00-042-4806 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.
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