PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

22840Seat,helical Compression Spring

Eaton Aerospace Llc · NSN 5340-01-036-5409 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-036-5409 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-036-5409. Primary manufacturer part number: 22840.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Design Type: SOLID
  • Surface Treatment: PASSIVATE
  • Material: STEEL COMP 630
  • Material Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Comp 630 construction
General Description

The Seat,helical Compression Spring, cataloged under National Stock Number 5340-01-036-5409, 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. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-036-5409
Primary Part Number22840
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEaton Aerospace Llc
StatusACTIVE
Design TypeSOLID
Surface TreatmentPASSIVATE
MaterialSTEEL COMP 630
Material Hardness Rating36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 4
5325-00-090-488832383 INTERCHANGEABLE
Grommet,nonmetallic
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
8040-00-262-9040103 INTERCHANGEABLE
Adhesive
Union Rubber, Inc.
5365-01-047-831722840 INTERCHANGEABLE
Spacer,sleeve
Fabrication Specialty Inc Dba Fabrication Specialty Inc
4730-01-114-162222840 INTERCHANGEABLE
Coupling,tube
Hein Werner Corp
Cross-Reference Index
Part NumberManufacturer
22840 PRIMARY Eaton Aerospace Llc (USA)
Related Parts
5325-00-090-4888INTERCHANGEABLE
GROMMET,NONMETALLIC
32383
8040-00-262-9040INTERCHANGEABLE
ADHESIVE
103
5365-01-047-8317INTERCHANGEABLE
SPACER,SLEEVE
22840
4730-01-114-1622INTERCHANGEABLE
COUPLING,TUBE
22840

Frequently Asked Questions

What is NSN 5340-01-036-5409?

NSN 5340-01-036-5409 is a Seat,helical Compression Spring, manufactured by Eaton Aerospace Llc, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-036-5409?

NSN 5340-01-036-5409 has 1 cross-referenced part number: 22840 (Eaton Aerospace Llc).

What NSN replaces 5340-01-036-5409?

There are 4 known substitutes for 5340-01-036-5409: 5325-00-090-4888, 8040-00-262-9040, 5365-01-047-8317 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 22840?

Key specifications for 22840: Design Type: SOLID; Surface Treatment: PASSIVATE; Material: STEEL COMP 630; Material Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 41.0 ROCKWELL C MAXIMUM. 4 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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