PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

174DSpring,helical,extension

Harper Jos and Son Inc · NSN 5360-00-664-4525 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-664-4525 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-664-4525. Primary manufacturer part number: 174D.
Features
  • Spring,helical,extension — FSC 5360
  • Style Designator: CYLINDRICAL
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • End Style: MACHINE CUT-OFF BOTH ENDS
  • Design Type: CLOSED
  • Spring Free Outside Diameter: 0.7525 INCHES NOMINAL IN
  • Material: COPPER ALLOY 511 OVERALL
  • Inside Diameter: 0.563 INCHES NOMINAL IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Copper Alloy 511 Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-00-664-4525, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harper Jos and Son Inc. Government technical data includes 7 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.

Technical Specifications
ParameterValue
NSN5360-00-664-4525
Primary Part Number174D
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerHarper Jos and Son Inc
StatusACTIVE
Style DesignatorCYLINDRICAL
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
End StyleMACHINE CUT-OFF BOTH ENDS
Design TypeCLOSED
Spring Free Outside Diameter0.7525 INCHES NOMINAL IN
MaterialCOPPER ALLOY 511 OVERALL
Inside Diameter0.563 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5340-00-311-94901064 D INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
2910-00-997-239410004600 INTERCHANGEABLE
Pump,engine Priming,hand Driven
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
174D Harper Jos and Son Inc (USA)
Related Parts
5340-00-311-9490INTERCHANGEABLE
KEY BLANK
1064 D
2910-00-997-2394INTERCHANGEABLE
PUMP,ENGINE PRIMING,HAND DRIVEN
10004600

Frequently Asked Questions

What is NSN 5360-00-664-4525?

NSN 5360-00-664-4525 is a Spring,helical,extension, manufactured by Harper Jos and Son Inc, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-664-4525?

NSN 5360-00-664-4525 has 1 cross-referenced part number: 174D (Harper Jos and Son Inc).

What NSN replaces 5360-00-664-4525?

There are 2 known substitutes for 5360-00-664-4525: 5340-00-311-9490, 2910-00-997-2394. Verify interchangeability with system specifications before substitution.

What are the specifications of 174D?

Key specifications for 174D: Style Designator: CYLINDRICAL; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; End Style: MACHINE CUT-OFF BOTH ENDS; Design Type: CLOSED. 7 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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