PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

29361Seat,helical Compression Spring

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 5340-01-033-9997 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-033-9997 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-033-9997. Primary manufacturer part number: 29361.
Features
  • Seat,helical Compression Spring — FSC 5340
  • First Step Diameter: 1.0850 INCHES NOMINAL IN
  • Second Step Diameter: 1.3570 INCHES NOMINAL IN
  • Distance From End to First Step: 0.6750 INCHES NOMINAL IN
  • Design Type: SOLID
  • End Diameter: 0.4500 INCHES NOMINAL IN
  • Second End Diameter: 0.4650 INCHES NOMINAL IN
  • Surface Treatment: ANODIZE
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-033-9997, 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 15 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-033-9997
Primary Part Number29361
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
First Step Diameter1.0850 INCHES NOMINAL IN
Second Step Diameter1.3570 INCHES NOMINAL IN
Distance From End to First Step0.6750 INCHES NOMINAL IN
Design TypeSOLID
End Diameter0.4500 INCHES NOMINAL IN
Second End Diameter0.4650 INCHES NOMINAL IN
Surface TreatmentANODIZE
FSC Application DataAIRCRAFT HYDRAULIC SYSTEMS
MaterialALUMINUM ALLOY 2024
Style DesignatorSEAT
Surface Treatment Document and ClassificationMIL-A-8625, TYPE 1, CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
Material Document and ClassificationQQ-A-225/6, ALLOY 2024 FED SPEC SINGLE MATERIAL RESPONSE
First Step Length0.1750 INCHES NOMINAL IN
Bore Diameter0.3130 INCHES NOMINAL IN
Second Step Length0.0550 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
5342-00-109-89599649M39P03 INTERCHANGEABLE
Coupling,clamp,grooved
V I J Corp Div National Utilities Company
5133-00-228-1335 INTERCHANGEABLE
Drill,twist
5995-01-348-00092936-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Star Dynamic Corporation Dba Star Dynamic Corp
Cross-Reference Index
Part NumberManufacturer
29361 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
5342-00-109-8959INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
9649M39P03
5133-00-228-1335INTERCHANGEABLE
DRILL,TWIST
5995-01-348-0009INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
2936-1

Frequently Asked Questions

What is NSN 5340-01-033-9997?

NSN 5340-01-033-9997 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 5340-01-033-9997?

NSN 5340-01-033-9997 has 1 cross-referenced part number: 29361 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 5340-01-033-9997?

There are 3 known substitutes for 5340-01-033-9997: 5342-00-109-8959, 5133-00-228-1335, 5995-01-348-0009. Verify interchangeability with system specifications before substitution.

What are the specifications of 29361?

Key specifications for 29361: First Step Diameter: 1.0850 INCHES NOMINAL IN; Second Step Diameter: 1.3570 INCHES NOMINAL IN; Distance From End to First Step: 0.6750 INCHES NOMINAL IN; Design Type: SOLID. 17 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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