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Torsion Helical Spring

NSN: 5360-00-005-0037 | Model: G104-581

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.


Half loop end style torsion spring with 12 coils.

NSN Properties and Flags
NATO Stock Number
Inside Diameter
Between 0.294 inches and 0.306 inches
End Style
Offset half loop, left end
Spring Free Length
1.200 inches
Center Section Width
Between 0.556 inches and 0.560 inches
Coil Quantity
Coil Helix Direction
Right-hand or left-hand
Spring Free Outside Diameter
Between 0.390 inches and 0.406 inches
Coil Axis To Center Section Distance
Between 0.950 inches and 0.952 inches
Hook Radius
0.0625 inches
End Angular Relationship
Ends parallel one to other
End Length
0.4225 inches both ends
End Length From Second Bend To Third Bend Or End
0.175 inches second end
Style Designator
Single torsion right hand

Pricing and Availability

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NSN 5360-00-005-0037 Datasheet

Supply Class (FSC):
Wire Springs Leaf Flat Coil
Cross Reference:
  • G104-581
Cage Codes:
  • Northrop Grumman Systems Corporation (CAGE 26512)

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:

    177970 - Springs noi stl o/t wire

  • 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:

    Z - No rating

  • 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 $245.23 to $408.71..
Does NSN 5360-00-005-0037 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 Air Force, and Department Of The Navy
What is the NIIN of NSN 5360-00-005-0037?
000050037 or 00-005-0037
Does NSN 5360-00-005-0037 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 5360-00-005-0037?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jun 19, 1972