PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2561-4Spring,helical,compression

Cole Hersee Company · NSN 5360-01-175-3557 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-01-175-3557 — this item is cataloged by the U.S. Government under National Stock Number 5360-01-175-3557. Primary manufacturer part number: 2561-4.
Features
  • Spring,helical,compression — FSC 5360
  • Inside Diameter: 0.299 INCHES NOMINAL IN
  • Coil Quantity: 4
  • Spring Free Length: 0.437 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
  • End Style: SPRING END,SQUARED BOTH ENDS
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Material: STEEL OVERALL
  • Spring Free Outside Diameter: 0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,compression, cataloged under National Stock Number 5360-01-175-3557, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Cole Hersee Company. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-01-175-3557
Primary Part Number2561-4
Item NameSpring,helical,compression
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerCole Hersee Company
StatusACTIVE
Inside Diameter0.299 INCHES NOMINAL IN
Coil Quantity4
Spring Free Length0.437 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
End StyleSPRING END,SQUARED BOTH ENDS
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
MaterialSTEEL OVERALL
Spring Free Outside Diameter0.350 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
Style DesignatorCYLINDRICAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-233-6395 INTERCHANGEABLE
Drill,twist
4320-00-245-949925614 INTERCHANGEABLE
Parts Kit,hydraulic Pump
Triumph Engine Control Systems Llc
5935-00-283-3360213498-1 INTERCHANGEABLE
Connector,receptacle,electrical
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-647-2395 INTERCHANGEABLE
Screw,cap,socket Head
5962-01-222-8809 INTERCHANGEABLE
Microcircuit,digital
3040-01-356-867125614 INTERCHANGEABLE
Shaft,straight
Paccar Winch Inc Dba Paccar Winch Division
4210-01-586-715025614 INTERCHANGEABLE
Extinguisher,fire
Buckeye Fire Equipment Co
Cross-Reference Index
Part NumberManufacturer
2561-4 PRIMARY Cole Hersee Company (USA)
7V8390 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5133-00-233-6395INTERCHANGEABLE
DRILL,TWIST
4320-00-245-9499INTERCHANGEABLE
PARTS KIT,HYDRAULIC PUMP
25614
5935-00-283-3360INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
213498-1
5305-00-647-2395INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
5962-01-222-8809INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
3040-01-356-8671INTERCHANGEABLE
SHAFT,STRAIGHT
25614
4210-01-586-7150INTERCHANGEABLE
EXTINGUISHER,FIRE
25614

Frequently Asked Questions

What is NSN 5360-01-175-3557?

NSN 5360-01-175-3557 is a Spring,helical,compression, manufactured by Cole Hersee Company, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-01-175-3557?

NSN 5360-01-175-3557 has 2 cross-referenced part numbers: 2561-4 (Cole Hersee Company), 7V8390 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5360-01-175-3557?

There are 7 known substitutes for 5360-01-175-3557: 5133-00-233-6395, 4320-00-245-9499, 5935-00-283-3360 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2561-4?

Key specifications for 2561-4: Inside Diameter: 0.299 INCHES NOMINAL IN; Coil Quantity: 4; Spring Free Length: 0.437 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; End Style: SPRING END,SQUARED BOTH ENDS. 8 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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