PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

700324Seat,helical Compression Spring

Hamilton Sundstrand Corporation · NSN 5340-00-937-2571 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-937-2571 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-937-2571. Primary manufacturer part number: 700324.
Features
  • Seat,helical Compression Spring — FSC 5340
  • Countersink Diameter: 0.3750 INCHES NOMINAL IN
  • Counterbore Diameter: 0.6410 INCHES NOMINAL IN
  • Style Designator: SEAT
  • Surface Treatment: PASSIVATE
  • Material: STEEL
  • End Diameter: 0.4020 INCHES NOMINAL IN
  • Design Type: SPLIT
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 5340-00-937-2571, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hamilton Sundstrand Corporation. Government technical data includes 16 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-937-2571
Primary Part Number700324
Item NameSeat,helical Compression Spring
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation
StatusACTIVE
Countersink Diameter0.3750 INCHES NOMINAL IN
Counterbore Diameter0.6410 INCHES NOMINAL IN
Style DesignatorSEAT
Surface TreatmentPASSIVATE
MaterialSTEEL
End Diameter0.4020 INCHES NOMINAL IN
Design TypeSPLIT
First Step Diameter0.7190 INCHES NOMINAL IN
Spherical Seat Top Radius0.3000 INCHES NOMINAL IN
Material Hardness Rating32.0 ROCKWELL C MINIMUM
FSC Application DataAIRCRAFT HYDRAULIC,VACUUM,DEICING SYSTEMS
Counterbore Length0.2700 INCHES NOMINAL IN
Seat Angle in Deg45.0
Countersink Angle in Deg45.0
Bore Diameter0.3090 INCHES NOMINAL IN
Distance From End to First Step0.2950 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5905-00-104-8343 INTERCHANGEABLE
Resistor,fixed,composition
5340-01-628-2950700324 INTERCHANGEABLE
Nozzle Hanger
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
700324 PRIMARY Hamilton Sundstrand Corporation (USA)
Related Parts
5905-00-104-8343INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5340-01-628-2950INTERCHANGEABLE
NOZZLE HANGER
700324

Frequently Asked Questions

What is NSN 5340-00-937-2571?

NSN 5340-00-937-2571 is a Seat,helical Compression Spring, manufactured by Hamilton Sundstrand Corporation, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-937-2571?

NSN 5340-00-937-2571 has 1 cross-referenced part number: 700324 (Hamilton Sundstrand Corporation).

What NSN replaces 5340-00-937-2571?

There are 2 known substitutes for 5340-00-937-2571: 5905-00-104-8343, 5340-01-628-2950. Verify interchangeability with system specifications before substitution.

What are the specifications of 700324?

Key specifications for 700324: Countersink Diameter: 0.3750 INCHES NOMINAL IN; Counterbore Diameter: 0.6410 INCHES NOMINAL IN; Style Designator: SEAT; Surface Treatment: PASSIVATE. 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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