PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14512Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-00-854-8851 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-854-8851 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-854-8851. Primary manufacturer part number: 14512.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Design Type: SOLID
  • End Diameter: 0.3750 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-S-763, CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE
  • Style Designator: SEAT
  • Material: STEEL COMP 416
  • FSC Application Data: VALVES AIRCRAFT HYDRAULIC SYSTEM,SPECIALLY DESIGNED
  • Surface Treatment: PASSIVATE
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 416 construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-854-8851, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-854-8851
Primary Part Number14512
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Design TypeSOLID
End Diameter0.3750 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
Material Document and ClassificationQQ-S-763, CLASS 416 FED SPEC SINGLE MATERIAL RESPONSE
Style DesignatorSEAT
MaterialSTEEL COMP 416
FSC Application DataVALVES AIRCRAFT HYDRAULIC SYSTEM,SPECIALLY DESIGNED
Surface TreatmentPASSIVATE
First Step Diameter0.7430 INCHES MINIMUM AND 0.7480 INCHES MAXIMUM IN
Distance From End to First Step0.0580 INCHES MINIMUM AND 0.0600 INCHES MAXIMUM IN
Bore Diameter0.1250 INCHES NOMINAL IN
Material Hardness Rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5306-01-170-179614512 SUCCESSOR
Bolt,machine
Brinkley Technology Group Llc Dba Hercules Manufacturing
4820-00-071-167314512 INTERCHANGEABLE
Disk,valve
Provision, Inc. Dba Provision Inc
2910-00-136-87313007036 INTERCHANGEABLE
Tank,fuel,engine
Tankcraft Corp
5305-00-151-1374 INTERCHANGEABLE
Screw,machine
5935-00-259-9850238-5003-1 INTERCHANGEABLE
Strap Nut,plug-in Electronic Com
Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
4210-00-299-001114512 INTERCHANGEABLE
Extinguisher,fire
Tyco Fire Products Lp
6350-00-300-591714512 INTERCHANGEABLE
Sleeve,contactor
Leslie Controls, Inc. Dba Leslie Controls Inc
5930-01-206-675611261 ITEM 1 INTERCHANGEABLE
Switch,toggle
Attack Inc
6240-01-344-545555PAR/SP/SS/120-130V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
7920-01-617-800914512 INTERCHANGEABLE
Brush,wire,tube
Schaefer Brush Mfg Co Inc
Cross-Reference Index
Part NumberManufacturer
14512 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5306-01-170-1796SUCCESSOR
BOLT,MACHINE
14512
4820-00-071-1673INTERCHANGEABLE
DISK,VALVE
14512
2910-00-136-8731INTERCHANGEABLE
TANK,FUEL,ENGINE
3007036
5305-00-151-1374INTERCHANGEABLE
SCREW,MACHINE
5935-00-259-9850INTERCHANGEABLE
STRAP NUT,PLUG-IN ELECTRONIC COM
238-5003-1
4210-00-299-0011INTERCHANGEABLE
EXTINGUISHER,FIRE
14512
6350-00-300-5917INTERCHANGEABLE
SLEEVE,CONTACTOR
14512
5930-01-206-6756INTERCHANGEABLE
SWITCH,TOGGLE
11261 ITEM 1
6240-01-344-5455INTERCHANGEABLE
LAMP,INCANDESCENT
55PAR/SP/SS/120-130V
7920-01-617-8009INTERCHANGEABLE
BRUSH,WIRE,TUBE
14512
6230-01-626-6789INTERCHANGEABLE
FLASHLIGHT
14533
5985-01-727-1682INTERCHANGEABLE
MAST
14512-1

Frequently Asked Questions

What is NSN 5340-00-854-8851?

NSN 5340-00-854-8851 is a Seat,helical Compression Spring, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-854-8851?

NSN 5340-00-854-8851 has 1 cross-referenced part number: 14512 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-00-854-8851?

There are 12 known substitutes for 5340-00-854-8851: 5306-01-170-1796, 4820-00-071-1673, 2910-00-136-8731 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 14512?

Key specifications for 14512: Overall Height: 0.0900 INCHES NOMINAL IN; Design Type: SOLID; End Diameter: 0.3750 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN; Material Document and Classification: QQ-S-763, CLASS 416 FED 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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