PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3331Spring,helical,extension

Manitowoc Engineering Co Division of the Manitowoc Co Inc · NSN 5360-00-447-6660 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-447-6660 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-447-6660. Primary manufacturer part number: 3331.
Features
  • Spring,helical,extension — FSC 5360
  • Design Type: CLOSED
  • Spring Free Outside Diameter: 1.500 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Load Rating: 490.000 POUNDS NOMINAL LBS
  • Spring Length Under Load: 25.000 INCHES NOMINAL IN
  • Style Designator: CYLINDRICAL
  • Material: STEEL OVERALL
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring,helical,extension, cataloged under National Stock Number 5360-00-447-6660, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Manitowoc Engineering Co Division of the Manitowoc Co Inc. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5360-00-447-6660
Primary Part Number3331
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerManitowoc Engineering Co Division of the Manitowoc Co Inc
StatusCANCELLED
Design TypeCLOSED
Spring Free Outside Diameter1.500 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Load Rating490.000 POUNDS NOMINAL LBS
Spring Length Under Load25.000 INCHES NOMINAL IN
Style DesignatorCYLINDRICAL
MaterialSTEEL OVERALL
Opening Width0.500 INCHES NOMINAL BOTH ENDS IN
Spring Free Length18.000 INCHES NOMINAL IN
Spring Deflection Rate53.000 POUNDS PER INCH NOMINAL LBS
End StyleSWIVEL HOOK BOTH ENDS
Coil Quantity60
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5315-00-019-7085 INTERCHANGEABLE
Pin
6625-00-229-8793 INTERCHANGEABLE
Marker,sweep,fixed
3110-00-277-03683331 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
6515-00-365-630022-1240 INTERCHANGEABLE
Scissors,tenotomy
Sklar Corporation Dba Sklar Instruments
4310-00-470-6414P09043B INTERCHANGEABLE
Cylinder,intake Val
Gardner Denver Inc.
2530-00-524-9191F18197 INTERCHANGEABLE
Cylinder Assembly,hydraulic Brak
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
5977-00-796-67603331 INTERCHANGEABLE
Holder,electrical Contact Brush
Archer Engineering Inc
5998-00-828-9139 INTERCHANGEABLE
Circuit Card Assembly
5935-00-849-45783331 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5962-01-364-37803331 INTERCHANGEABLE
Microcircuit,linear
Trig-Tek, Incorporated
Cross-Reference Index
Part NumberManufacturer
3331 PRIMARY Manitowoc Engineering Co Division of the Manitowoc Co Inc (USA)
Related Parts
5315-00-019-7085INTERCHANGEABLE
PIN
6625-00-229-8793INTERCHANGEABLE
MARKER,SWEEP,FIXED
3110-00-277-0368INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3331
6515-00-365-6300INTERCHANGEABLE
SCISSORS,TENOTOMY
22-1240
4310-00-470-6414INTERCHANGEABLE
CYLINDER,INTAKE VAL
P09043B
2530-00-524-9191INTERCHANGEABLE
CYLINDER ASSEMBLY,HYDRAULIC BRAK
F18197
5977-00-796-6760INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
3331
5998-00-828-9139INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5935-00-849-4578INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
3331
5962-01-364-3780INTERCHANGEABLE
MICROCIRCUIT,LINEAR
3331
6530-01-369-7956INTERCHANGEABLE
RESTRAINT,TORSO
3331
6515-01-388-4956INTERCHANGEABLE
PUNCH,CUTANEOUS BIOPSY
96-1100

Frequently Asked Questions

What is NSN 5360-00-447-6660?

NSN 5360-00-447-6660 is a Spring,helical,extension, manufactured by Manitowoc Engineering Co Division of the Manitowoc Co Inc, classified under FSC 5360 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5360-00-447-6660?

NSN 5360-00-447-6660 has 1 cross-referenced part number: 3331 (Manitowoc Engineering Co Division of the Manitowoc Co Inc).

What NSN replaces 5360-00-447-6660?

There are 12 known substitutes for 5360-00-447-6660: 5315-00-019-7085, 6625-00-229-8793, 3110-00-277-0368 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3331?

Key specifications for 3331: Design Type: CLOSED; Spring Free Outside Diameter: 1.500 INCHES NOMINAL IN; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND; Load Rating: 490.000 POUNDS NOMINAL LBS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5360-00-447-6660 still in active supply?

NSN 5360-00-447-6660 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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