Model: 121F2C

Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round b
Shoulder Diameter
2.7500 inches
Pilot Diameter
2.7000 inches
Overall Length
5.7300 inches
Flange Diameter
3.1000 inches
Flange Thickness
0.2500 inches
Undercut Width
0.2500 inches
Shaft Diameter
0.2500 inches single shaft
Shaft Length
0.8000 inches single shaft
Body Size
31
Rotor Input Voltage Rating In Volts
115.0
Frequency In Hertz
400.0
Rotor Input Current Rating
1.8 amperes
Rotor Input Electrical Power Rating
17.0 watts
Zro Impedance Magnitude In Ohms
166.00
Zro Impedance Angle In Deg
87.00
Zss Impedance Magnitude In Ohms
5.90
Zss Impedance Angle In Deg
72.00
Phase Shift Angle In Deg
2.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
35.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
100.00
Electrical Error Angular Range In Minutes
-8.0/+8.0
Spline Tooth Quantity
22 single shaft
Actuator Friction Torque At Plus 25 Deg Celsius
0.50 inch-ounces
Torque Gradient Per Angular Deg
0.670 inch-ounces
Pilot Length
0.6750 inches
Shoulder Length
0.3750 inches
Mounting Surface To Terminal End Distance
3.3800 inches
Spline Tooth Diametral Pitch
96 single shaft
Shaft Thread Series Designator
Unf single shaft
Shaft Thread Direction
Right-hand single shaft
Shaft Thread Class
2a single shaft
Terminal Location
Rear
Shaft Thread Length
0.2670 inches single shaft
Shaft Type
Spline w/threads single shaft
Transformation Ratio
0.783 rotor to stator
Shaft Thread Size
0.250 inches single shaft
Terminal Type And Quantity
5 screw
Nondefinitive Specification/std Data
31tx4c type
NSN
5990-00-501-2014
Part Number
121F2C
Description
Synchro,transmitter
CAGE
95542

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the stator into a receiver synchro, a control transformer or differential synchro is dependent upon the position of its rotor. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part 121F2C NSN 5990-00-501-2014

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02073
FIIG:
A07800
Concept No.:
1
App. Key:
H
Cond. Code:
1
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9014900000
  • SITC: 87412
  • End Use: Marine engines, parts
  • NAICS: 334511
  • USDA: 1

Freight Class: Parts & accessories for direction finding compasses and other navigational instruments and appliances

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