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Flexible Shaft Assembly

Model / MPN: 15939-021-03 | NSN: 1680-00-528-1718
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.

Product Details
NATO Stock Number
1680-00-528-1718
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Thread Class
2a both ends
Thread Direction
Right-hand both ends
Thread Length
0.281 inches both ends
Spline Major Diameter
0.310 inches both ends
Overall Length
22.093 inches
Spline Quantity
12 both ends
Spline Minor Diameter
0.242 inches both ends
Thread Depth
0.281 inches both ends
Tip Length
0.500 inches both ends
Pitch Diameter
0.250 inches both ends
Core Material
Steel
Screw Thread Series Designator
Uns both ends
Core Diameter
0.250 inches
Thread Location
Internal both ends
End Type
Round, internal splined both ends
Width Across Flats
0.750 inches both ends
End Connection Type
Threaded internal both ends
Spline Pressure Angle In Deg
14.5 both ends
Spline Length
0.242 inches both ends
Spline Type
Involute both ends
Setscrew
Not included both ends
Casing Material
Steel
Wrenching Facility Type
Hexagon both ends
Cross Section Size And Location
0.406 inches diameter both ends
Torsional Deflection Rating
50 degrees ft-lb in. Torsional deflection in winding direction, 75 degrees ft-lb in unwinding direction
Casing Length Between Ferrules
21.093 inches
Casing Outside Diameter
0.445 inches
Swivel End
Not provided both ends
Enddiameter
0.875 inches both ends
Lubrication Fitting
Not provided both ends
Corelength
21.529 inches
Core Rotation Direction
Clockwise or counterclockwise
Core Removability
Nonremovable
Minimum Operating Radius
3.000 inches
Fsc Application Data
Actuator installation, oil cooler flap, aircraft
15939 Series Parts

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15939-021-03 Cross Reference
  • 15939-021-03
  • 15939-021-03