PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20306Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-00-045-9424 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-045-9424 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-045-9424. Primary manufacturer part number: 20306.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Surface Treatment: PASSIVATE
  • Material: STEEL
  • Design Type: SOLID
  • Material Hardness Rating: 39.0 ROCKWELL C MINIMUM
  • FSC Application Data: AIRCRAFT WHEEL,BRAKE SYSTEMS
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-00-045-9424, 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 5 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
NSN5340-00-045-9424
Primary Part Number20306
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Surface TreatmentPASSIVATE
MaterialSTEEL
Design TypeSOLID
Material Hardness Rating39.0 ROCKWELL C MINIMUM
FSC Application DataAIRCRAFT WHEEL,BRAKE SYSTEMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 12
5940-00-271-7987414 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
2540-00-273-713115461 INTERCHANGEABLE
Blade,windshield Wiper
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
3110-00-554-6106 INTERCHANGEABLE
Bearing,ball,annular
5975-00-561-48442140 INTERCHANGEABLE
Box Connector,electrical
Raco, a Division of Hubbell Incorporated(delaware)
6515-00-584-289342351 04 01 INTERCHANGEABLE
Infusor,pressure,blood Collectin
Icu Medical, Inc.
3455-00-596-516150-10515 4533-6 INTERCHANGEABLE
Reamer,machine
Union Butterfield Corp P O Box 9000 Crystal Lake Il 60039
4730-01-032-6038246090N INTERCHANGEABLE
Insert,tube Fitting
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
4820-01-050-755512719001156 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-050-9212B12720.001.119 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5365-01-190-0824CB27161X01-022 INTERCHANGEABLE
Shim
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
20306 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5940-00-271-7987INTERCHANGEABLE
TERMINAL,LUG
414
2540-00-273-7131INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
15461
3110-00-554-6106INTERCHANGEABLE
BEARING,BALL,ANNULAR
5975-00-561-4844INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
2140
6515-00-584-2893INTERCHANGEABLE
INFUSOR,PRESSURE,BLOOD COLLECTIN
42351 04 01
3455-00-596-5161INTERCHANGEABLE
REAMER,MACHINE
50-10515 4533-6
4730-01-032-6038INTERCHANGEABLE
INSERT,TUBE FITTING
246090N
4820-01-050-7555INTERCHANGEABLE
SEAT,VALVE
12719001156
4820-01-050-9212INTERCHANGEABLE
DISK,VALVE
B12720.001.119
5365-01-190-0824INTERCHANGEABLE
SHIM
CB27161X01-022
5920-01-216-5216INTERCHANGEABLE
FUSEHOLDER,BLOCK
20306
5330-01-255-6782INTERCHANGEABLE
PACKING,PREFORMED
20306

Frequently Asked Questions

What is NSN 5340-00-045-9424?

NSN 5340-00-045-9424 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 5340-00-045-9424?

NSN 5340-00-045-9424 has 1 cross-referenced part number: 20306 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-00-045-9424?

There are 12 known substitutes for 5340-00-045-9424: 5940-00-271-7987, 2540-00-273-7131, 3110-00-554-6106 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20306?

Key specifications for 20306: Surface Treatment: PASSIVATE; Material: STEEL; Design Type: SOLID; Material Hardness Rating: 39.0 ROCKWELL C MINIMUM. 5 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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