Model: 31551-012-21

Flexible Shaft Assembly

Properties:

Spline Major Diameter
0.307 inches both ends
Overall Length
13.717 inches
Flange Thickness
0.063 inches both ends
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
Steel
Core Diameter
0.250 inches
End Type
Round, external splined 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
Involute both ends
Casing Material
Steel
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 unwinding direction
Casing Length Between Ferrules
11.031 inches
Casing Outside Diameter
0.445 inches
Swivel End
Not provided both ends
Enddiameter
0.562 inches both ends
Lubrication Fitting
Not provided both ends
Corelength
13.717 inches
Core Rotation Direction
Clockwise or counterclockwise
Core Removability
Nonremovable
Minimum Operating Radius
10.000 inches
Fsc Application Data
Miscellaneous aircraft accessories and components
NSN
1680-00-564-0187
Part Number
31551-012-21
Description
Shaft Assembly,flexible
CAGE
3CPE0

An item consisting of a casing with fittings and attachments on each end and a spirally wound wire core with formed end(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.

Part 31551-012-21 NSN 1680-00-564-0187

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20315
FIIG:
T246-E
Concept No.:
App. Key:
EA
Cond. Code:
2
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8803300060
  • SITC: 79295
  • End Use: Parts for military-type goods
  • NAICS: 336413
  • USDA: 1

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

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