PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30347Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-00-397-7620 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-397-7620 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-397-7620. Primary manufacturer part number: 30347.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Material: STEEL
  • Surface Treatment: PASSIVATE
  • FSC Application Data: AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS
  • Material Hardness Rating: 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
  • 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 5340-00-397-7620, 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 4 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-397-7620
Primary Part Number30347
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
MaterialSTEEL
Surface TreatmentPASSIVATE
FSC Application DataAIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS
Material Hardness Rating25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
5315-00-248-2391 INTERCHANGEABLE
Pin,straight,headless
5930-00-577-23323SR2A3A9000S6202-74090 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Electro Switch Corp
4930-00-884-0146 INTERCHANGEABLE
Cap,cylinder
4820-00-944-29983034-07 INTERCHANGEABLE
Valve,diaphragm,stop
Watts Automatic Control Valve Inc
5915-01-439-832530347 INTERCHANGEABLE
Filter Assembly,electrical
Science Applications International Corporation Dba Saic
Cross-Reference Index
Part NumberManufacturer
30347 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5315-00-248-2391INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5930-00-577-2332INTERCHANGEABLE
SWITCH,ROTARY
3SR2A3A9000S6202-74090
4930-00-884-0146INTERCHANGEABLE
CAP,CYLINDER
4820-00-944-2998INTERCHANGEABLE
VALVE,DIAPHRAGM,STOP
3034-07
5915-01-439-8325INTERCHANGEABLE
FILTER ASSEMBLY,ELECTRICAL
30347

Frequently Asked Questions

What is NSN 5340-00-397-7620?

NSN 5340-00-397-7620 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 5340-00-397-7620?

NSN 5340-00-397-7620 has 1 cross-referenced part number: 30347 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-00-397-7620?

There are 5 known substitutes for 5340-00-397-7620: 5315-00-248-2391, 5930-00-577-2332, 4930-00-884-0146 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30347?

Key specifications for 30347: Special Features: USED ON C-130E AIRCRAFT; Material: STEEL; Surface Treatment: PASSIVATE; FSC Application Data: AIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS. 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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