PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

2331956Spring,helical,extension

The Boeing Company · NSN 5360-00-663-1589 · FSC 5360 · No Item Name Available
Verified by PartsTable
NSN 5360-00-663-1589 — this item is cataloged by the U.S. Government under National Stock Number 5360-00-663-1589. Primary manufacturer part number: 2331956.
Features
  • Spring,helical,extension — FSC 5360
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Spring Free Outside Diameter: 0.875 INCHES NOMINAL IN
  • Coil Helix Direction: RIGHT-HAND OR LEFT-HAND
  • Style Designator: CYLINDRICAL
  • End Style: RAISED HOOK FIRST END
  • End Style: SHORT TWISTED HOOK SECOND END
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 5360-00-663-1589, is classified within Federal Supply Class 5360 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5360-00-663-1589
Primary Part Number2331956
Item NameSpring,helical,extension
FSC / FSG5360 / 53 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Spring Free Outside Diameter0.875 INCHES NOMINAL IN
Coil Helix DirectionRIGHT-HAND OR LEFT-HAND
Style DesignatorCYLINDRICAL
End StyleRAISED HOOK FIRST END
End StyleSHORT TWISTED HOOK SECOND END
Opening Width1.937 INCHES NOMINAL FIRST END IN
Surface TreatmentCADMIUM OVERALL
Inside Diameter0.685 INCHES NOMINAL IN
Spring Free Length8.312 INCHES NOMINAL IN
Coil Quantity52
Design TypeCLOSED
Coil to Hook Inside Length2.467 INCHES NOMINAL FIRST END IN
Coil to Hook Inside Length0.530 INCHES NOMINAL SECOND END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Cross-Reference Index
Part NumberManufacturer
2331956 PRIMARY The Boeing Company (USA)
2331956 The Boeing Company (USA)
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Frequently Asked Questions

What is NSN 5360-00-663-1589?

NSN 5360-00-663-1589 is a Spring,helical,extension, manufactured by The Boeing Company, classified under FSC 5360 (No Item Name Available). Status: active.

What are the part numbers for NSN 5360-00-663-1589?

NSN 5360-00-663-1589 has 2 cross-referenced part numbers: 2331956 (The Boeing Company), 2331956 (The Boeing Company).

What are the specifications of 2331956?

Key specifications for 2331956: Material: STEEL OVERALL; Material Document and Classification: MIL-W-6101 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Spring Free Outside Diameter: 0.875 INCHES NOMINAL IN; Coil Helix Direction: RIGHT-HAND OR LEFT-HAND. 15 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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