PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AN200KS5MILG3278ABearing,ball,airframe

Aeronautical Standards Group Dept of Navy and Air Force · NSN 3110-00-142-4315 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-142-4315 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-142-4315. Primary manufacturer part number: AN200KS5MILG3278A.
Features
  • Bearing,ball,airframe — FSC 3110
  • Overall Outside Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
  • Load Direction: RADIAL
  • Inner Ring Width: 0.5530 INCHES MINIMUM AND 0.5580 INCHES MAXIMUM IN
  • Lubrication Material Document and Classification: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
  • Alignment Type: SELF-ALIGNING
  • Self-Alignment Location: INTERNAL
  • Outer Ring Width: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Overall construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-142-4315, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 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
NSN3110-00-142-4315
Primary Part NumberAN200KS5MILG3278A
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerAeronautical Standards Group Dept of Navy and Air Force
StatusACTIVE
Overall Outside Diameter1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Load DirectionRADIAL
Inner Ring Width0.5530 INCHES MINIMUM AND 0.5580 INCHES MAXIMUM IN
Lubrication Material Document and ClassificationMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
Alignment TypeSELF-ALIGNING
Self-Alignment LocationINTERNAL
Outer Ring Width0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
Shield Quantity2
Bore Diameter0.3120 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
Surface TreatmentCADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES
Style DesignatorSINGLE ROW SELF ALIGNING SINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialSTEEL COMP E52100 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-042-4808MS27645-5 INTERCHANGEABLE
Bearing,ball,airframe
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
AN200KS5MILG3278A Aeronautical Standards Group Dept of Navy and Air Force (USA)
KS5 Skf Usa Inc. (USA)
KS5 Timken Co Div the Timken Company (USA)
N16B5007-20 Navy Electronics Supply Office (USA)
KS5ANG25 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
AN200KS5 Air Force-Navy Aeronautical Specifications Promulgated by Aeronautical Standards Group
AN200KS5ANG25 Joint Aircraft Committee (USA)
AN200KS5 Aeronautical Standards Group Dept of Navy and Air Force (USA)
KS5FS160 Rbc Aircraft Products, Inc. (USA)
KS5 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
KS5 Fag Bearings Corporation (USA)
KS5FS160 Timken Co Div the Timken Company (USA)
Related Parts
3110-00-042-4808INTERCHANGEABLE
BEARING,BALL,AIRFRAME
MS27645-5

Frequently Asked Questions

What is NSN 3110-00-142-4315?

NSN 3110-00-142-4315 is a Bearing,ball,airframe, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-142-4315?

NSN 3110-00-142-4315 has 12 cross-referenced part numbers: AN200KS5MILG3278A (Aeronautical Standards Group Dept of Navy and Air Force), KS5 (Skf Usa Inc.), KS5 (Timken Co Div the Timken Company), N16B5007-20 (Navy Electronics Supply Office), KS5ANG25 (Schatz Bearing Corporation Dba Schatz Bearing Corp) and 7 more.

What NSN replaces 3110-00-142-4315?

There is 1 known substitute for 3110-00-142-4315: 3110-00-042-4808. Verify interchangeability with system specifications before substitution.

What are the specifications of AN200KS5MILG3278A?

Key specifications for AN200KS5MILG3278A: Overall Outside Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN; Load Direction: RADIAL; Inner Ring Width: 0.5530 INCHES MINIMUM AND 0.5580 INCHES MAXIMUM IN; Lubrication Material Document and Classification: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE. 13 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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