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Torsion Helical Spring

NSN: 5360-00-007-5791 | Model: A51K56609-11

An open-or close-wound coil spring consisting of one or more helical coils, wound from different shapes and types of material and finished at the ends, designed to exert pressure in a rotating direction around the coil axis. Excludes springs designed for thermal actuation (springs in which the torsion forces are counteracted by changes in temperature) and spring, reinforcing, hose.


Steel material

NSN Properties and Flags
NATO Stock Number
Inside Diameter
0.143 inches
End Style
Short hook, end first end
Spring Free Length
0.217 inches
Coil Quantity
Coil Helix Direction
Spring Free Outside Diameter
0.185 inches
End Angular Relationship
Ends parallel one to other
End Length
0.53 inches first end
End Length From First Bend To Second Bend Or End
0.08 inches
End Length From Second Bend To Third Bend Or End
0.08 inches second end
Steel comp 631
Material Document and Classification
Ams 5673 assn std single material response
Surface Treatment
Surface Treatment Document and Classification
Gss7021, grumman aer0 space corp mfr ref single treatment response
Style Designator
Single torsion left hand

Pricing and Availability

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NSN 5360-00-007-5791 Datasheet

Supply Class (FSC):
Wire Springs Leaf Flat Coil
Cross Reference:
  • A51K56609-11
  • A51K56609-11
Cage Codes:
  • Northrop Grumman Systems Corporation (CAGE 26512)
  • Northrop Grumman Systems Corporation (CAGE 61174)

N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.


U - Precious metal content is unknown


- The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Freight Information:
  • NMFC:

    178040 - Springs torsion

  • WCC:

    579 - Steel springs, (less than 35 feet)

  • SHC:

    9 - Other or no special handling required (sh)

  • ADC:

    A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

  • ACC:

    B - Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater

  • LTL:

    W - Rating variable

  • TCC:

    Z - No special type of cargo code applicable

NSN Management Codes:
  • SOS
  • AAC
  • Quantity per pack
  • Unit of Measure
  • Shelf Life
  • Classification Control
  • Repariability

Questions & Answers:

What are the historical prices recorded for this stock number?
Historical data shows pricing from $80.72 to $134.53..
Does NSN 5360-00-007-5791 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Department Of The Navy
What is the NIIN of NSN 5360-00-007-5791?
000075791 or 00-007-5791
Does NSN 5360-00-007-5791 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5360-00-007-5791?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jul 19, 1972