PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54449Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-01-535-8517 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-535-8517 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-535-8517. Primary manufacturer part number: 54449.
Features
  • Seat,helical Compression Spring — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-535-8517, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-535-8517
Primary Part Number54449
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 7
3030-00-528-4449 INTERCHANGEABLE
Belt,v
1420-00-627-7546 INTERCHANGEABLE
Identifier Assembly,coordinate a
2920-00-732-45491056073 INTERCHANGEABLE
Kit Repair Current
Chrysler Realty Company Llc Dba Daimler Chrysler
5136-00-889-662554449 INTERCHANGEABLE
Tap,thread Cutting
Tapco Cutting Tools Inc
6615-01-251-51774311A-2-P127 INTERCHANGEABLE
Accelerometer,electrical,linear
Bei Precision Systems & Space Company, Inc
6145-01-342-960654449 INTERCHANGEABLE
Cable,radio Frequency
Semflex, Inc.
4130-01-658-376154449 INTERCHANGEABLE
Compressor,refrigeration
Ecu Corp Div Ecu Corporation
Cross-Reference Index
Part NumberManufacturer
54449 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
3030-00-528-4449INTERCHANGEABLE
BELT,V
1420-00-627-7546INTERCHANGEABLE
IDENTIFIER ASSEMBLY,COORDINATE A
2920-00-732-4549INTERCHANGEABLE
KIT REPAIR CURRENT
1056073
5136-00-889-6625INTERCHANGEABLE
TAP,THREAD CUTTING
54449
6615-01-251-5177INTERCHANGEABLE
ACCELEROMETER,ELECTRICAL,LINEAR
4311A-2-P127
6145-01-342-9606INTERCHANGEABLE
CABLE,RADIO FREQUENCY
54449
4130-01-658-3761INTERCHANGEABLE
COMPRESSOR,REFRIGERATION
54449

Frequently Asked Questions

What is NSN 5340-01-535-8517?

NSN 5340-01-535-8517 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 5340-01-535-8517?

NSN 5340-01-535-8517 has 1 cross-referenced part number: 54449 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-01-535-8517?

There are 7 known substitutes for 5340-01-535-8517: 3030-00-528-4449, 1420-00-627-7546, 2920-00-732-4549 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 54449?

Key specifications for 54449: Part Name Assigned by Controlling Agency: SEAT,HELICAL COMPRE; End Item Identification: C-17A ACFT A. 2 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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