PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

509881-10Bearing,ball,airframe

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3110-00-142-4287 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-142-4287 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-142-4287. Primary manufacturer part number: 509881-10.
Features
  • Bearing,ball,airframe — FSC 3110
  • Outer Ring Width: 0.3130 INCHES NOMINAL IN
  • Load Direction: RADIAL
  • Shield Quantity: 2
  • Inner Ring Width: 0.3750 INCHES NOMINAL IN
  • Lubrication Material Document and Classification: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
  • Bore Diameter: 0.5000 INCHES NOMINAL IN
  • Style Designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-142-4287, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 15 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
NSN3110-00-142-4287
Primary Part Number509881-10
Item NameBearing,ball,airframe
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Outer Ring Width0.3130 INCHES NOMINAL IN
Load DirectionRADIAL
Shield Quantity2
Inner Ring Width0.3750 INCHES NOMINAL IN
Lubrication Material Document and ClassificationMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
Bore Diameter0.5000 INCHES NOMINAL IN
Style DesignatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
MaterialSTEEL CORROSION RESISTING OVERALL
Overall Outside Diameter1.1250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1005-00-019-79036186 INTERCHANGEABLE
Catch,magazine
Smith & Wesson Sales Company
5940-00-113-3139MS20659-161 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
5962-00-161-4518536969-1 INTERCHANGEABLE
Microcircuit,linear
Raytheon Company Dba Raytheon
5962-00-167-6330 INTERCHANGEABLE
Microcircuit,linear
5330-00-172-9486 INTERCHANGEABLE
Seal,plain Encased
5120-00-243-7326 INTERCHANGEABLE
Extension,socket Wrench
3120-00-398-9333SX5 INTERCHANGEABLE
Bushing,sleeve
Circor Naval Solutions Llc Dba Warren Pumps
7350-00-458-0089EP-BL6 INTERCHANGEABLE
Bowl,eating
Eco-Products, Inc.
5960-00-504-8395 INTERCHANGEABLE
Electron Tube
6930-00-530-2956 INTERCHANGEABLE
Indicator,simulator
Cross-Reference Index
Part NumberManufacturer
10958 Raytheon Technical Services Company (USA)
509881-10 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
6186 Skf Usa Inc. (USA)
K8A Skf Industries Inc Nice Bearing Products Div (USA)
KC8 Timken Co Div the Timken Company (USA)
K8AANG25 PRIMARY Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
K8A PRIMARY Timken Aerospace, Inc Dba Torrington Product (USA)
A14590 Bendix Corp the (USA)
K8A PRIMARY Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
SX5 PRIMARY Fag Bearings Corporation (USA)
03-112-141 Lockheed Martin Corporation Dba Lockheed Martin Rotary and Mission Systems Div Rms- C6isr (USA)
6186 Skf Industries Inc Nice Bearing Products Div (USA)
K8A PRIMARY Fag Bearings Corporation (USA)
K8A Skf Usa Inc. (USA)
K8A PRIMARY Skf Usa Inc. (USA)
A3373 PRIMARY Ge Aviation Systems Llc (USA)
AN201K8AANG25 Joint Aircraft Committee (USA)
K8A Timken Co Div the Timken Company (USA)
10958 PRIMARY Cae Usa Inc. (USA)
A14590 PRIMARY Raytheon Company Dba Raytheon Co (USA)
Related Parts
1005-00-019-7903INTERCHANGEABLE
CATCH,MAGAZINE
6186
5940-00-113-3139INTERCHANGEABLE
TERMINAL,LUG
MS20659-161
5962-00-161-4518INTERCHANGEABLE
MICROCIRCUIT,LINEAR
536969-1
5962-00-167-6330INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5330-00-172-9486INTERCHANGEABLE
SEAL,PLAIN ENCASED
5120-00-243-7326INTERCHANGEABLE
EXTENSION,SOCKET WRENCH
3120-00-398-9333INTERCHANGEABLE
BUSHING,SLEEVE
SX5
7350-00-458-0089INTERCHANGEABLE
BOWL,EATING
EP-BL6
5960-00-504-8395INTERCHANGEABLE
ELECTRON TUBE
6930-00-530-2956INTERCHANGEABLE
INDICATOR,SIMULATOR
4820-00-541-2755INTERCHANGEABLE
VALVE,SAFETY RELIEF
6186
6625-00-604-2638INTERCHANGEABLE
VOLTMETER

Frequently Asked Questions

What is NSN 3110-00-142-4287?

NSN 3110-00-142-4287 is a Bearing,ball,airframe, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-142-4287?

NSN 3110-00-142-4287 has 21 cross-referenced part numbers: 10958 (Raytheon Technical Services Company), 509881-10 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 6186 (Skf Usa Inc.), K8A (Skf Industries Inc Nice Bearing Products Div), KC8 (Timken Co Div the Timken Company) and 16 more.

What NSN replaces 3110-00-142-4287?

There are 12 known substitutes for 3110-00-142-4287: 1005-00-019-7903, 5940-00-113-3139, 5962-00-161-4518 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 509881-10?

Key specifications for 509881-10: Outer Ring Width: 0.3130 INCHES NOMINAL IN; Load Direction: RADIAL; Shield Quantity: 2; Inner Ring Width: 0.3750 INCHES NOMINAL IN. 9 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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