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Flexible Shaft Assembly

NSN: 1680-00-474-1298 | Model: 31551-022-00
ITAR Registered seal

An item consisting of a casing with fittings and attachments on each end and a spirally wound wire core with formed en (s) and/or crimped on end fittings. It is designed to transmit rotary motion around bends from a motor or other power source to drive various types of equipment, such as tachometers, speedometers, remote controls, instruments, and the like, which are located at an angle and/or distance from the power source. See also control assembly, push-pull.

NSN Properties and Flags
NATO Stock Number
Yes - ITAR Controlled
Spline Major Diameter
0.307 inches both ends
Overall Length
23.061 inches
Spline Quantity
12 both ends
Spline Minor Diameter
0.241 inches both ends
Tip Length
0.531 inches both ends
Shank Outside Diameter
0.500 inches both ends
Pitch Diameter
0.250 inches both ends
Core Material
Core Diameter
0.250 inches
End Type
Round, internal splinted both ends
Width Across Flats
0.750 inches both ends
End Connection Type
Union ferrule both ends
Spline Pressure Angle In Deg
14.5 both ends
Spline Length
0.244 inches both ends
Spline Type
In volute both ends
Included both ends
Casing Material
Wrenching Facility Type
Hexagon both ends
Cross Section Size And Location
0.406 inches diameter both ends
Torsional Deflection Rating
5 degrees ft-lb in. Torsional deflection rating in winding direction, 7 degrees ft-lb in. Torsional deflection rating in unwinding direction
Casing Length Between Ferrules
20.375 inches
Casing Outside Diameter
0.445 inches
Swivel End
Not provided both ends
0.875 inches both ends
Lubrication Fitting
Not provided both ends
23.061 inches
Core Rotation Direction
Core Removability
Minimum Operating Radius
10.000 inches
Fsc Application Data
Miscellaneous aircraft accessories and components

Pricing and Availability

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NSN 1680-00-474-1298 Datasheet

Supply Class (FSC):
Miscellaneous Aircraft Accessories And Components
Cross Reference:
  • 31551-022-00
  • 31551-022-00
Cage Codes:
  • Safran Power Usa, Llc (CAGE 3CPE0)
  • Lucas Aerospace Power Equipment (CAGE 31435)
Schedule B & Trade:
  • Schedule B: 8803300060 (NAICS 336413)

    Other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof)

  • SITC: 79295

    Parts of airplanes or helicopters, n.E.S.

  • End Use: 50070

    Parts for military-type goods


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


A - Item does not contain precious metal.


- Represents items with no adp components


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

Freight Information:
  • NMFC:

    129920 - Shafts/shafting, flex noi stl

  • WCC:

    671 - Aircraft parts, to include test/tool sets and equipment (other than armament systems)

  • SHC:

    9 - Other or no special handling required (sh)

  • ACC:

    A - Supplies and equipment for aircraft and aerial targets, including aircraft and maintenance parts, aircraft accessories, aircraft

  • ADC:

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

  • LTL:

    M - 85.0

  • 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 $299.01 to $498.35..
Does NSN 1680-00-474-1298 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Defense Logistics Agency, and Greece
What is the NIIN of NSN 1680-00-474-1298?
004741298 or 00-474-1298
Does NSN 1680-00-474-1298 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 1680-00-474-1298?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1963