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Flexible Shaft Assembly

NSN: 2520-00-773-4128 | Model: 96200-79
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
Thread Class
2A both ends
Thread Direction
Right-hand both ends
Overall Length
80.063 inches
Thread Depth
0.375 inches second end
Tip Length
1.769 inches and 1.831 inches first end
Shank Outside Diameter
0.688 inches first end
Core Material
Screw Thread Series Designator
Uns both ends
Core Surface Treatment
Copper plated
Core Diameter
0.130 inches
Thread Location
Internal first end
End Type
Square male both ends
End Connection Type
Threaded internal first end
Not included both ends
Casing Material
Cross Section Size And Location
0.101 inches diameter and 0.104 inches diameter first end
Torsional Deflection Rating
50 degrees ft-lb in. Winding, 25 degrees ft-lb in. Unwinding
Casing Surface Treatment
Zinc coated
Casing Length Between Ferrules
79.000 inches
Casing Outside Diameter
0.243 inches
Swivel End
Provided both ends
1.031 inches first end
Lubrication Fitting
Not provided both ends
80.063 inches
Core Rotation Direction
Core Removability
Fsc Application Data
Transmissions, mechanical, vehicular

Pricing and Availability

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NSN 2520-00-773-4128 Datasheet

Supply Class (FSC):
Vehicular Power Transmission Components
Cross Reference:
  • 96200-79
  • 7734128
  • 78600-79
  • 94350-79
Cage Codes:
  • Warner Corporation Stewart (CAGE 57733)
  • U S Army Tank Automotive Command (CAGE 19207)
Schedule B & Trade:
  • Schedule B: 8483909500 (NAICS 333613)

    Parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts

  • SITC: 74890

    Parts, n.E.S., for transmission shafts and cranks, bearing housings, gears, gearing, ball screws, gear boxes, flywheels and pulleys, clutches, etc.

  • End Use: 21180

    Industrial machines, other


P - Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of federal standard 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.


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.

Questions & Answers:

What are the historical prices recorded for this stock number?
No pre-dated pricing for this NSN could be found.
Does NSN 2520-00-773-4128 have a shelf life?
No. There is no shelf life applicable for this NSN.
What NATO entities are users of this NSN?
Government Printing Office
What is the NIIN of NSN 2520-00-773-4128?
007734128 or 00-773-4128
Does NSN 2520-00-773-4128 require demilitarization?
Yes - ITAR Controlled
What is the most recent solicitation for NSN 2520-00-773-4128?
No solicitations for this NSN.
When was this national stock number assigned to the federal catalog?
Jan 01, 1960