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Differential Transmitter Synchro NSN 5990-00-702-1990

Item Description

A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.

NSN 5990-00-702-1990 NSN: 5990-00-702-1990

Features and Characteristics

Body Style
Standard round, rotatable housing
Shoulder Diameter
Between 2.6999 inches and 2.7000 inches
Overall Length
4.6550 inches
Flange Diameter
Between 3.0990 inches and 3.1000 inches
Flange Thickness
Between 0.2450 inches and 2.2550 inches
Body Diameter
Between 2.7490 inches and 2.7500 inches
Shaft Diameter
0.2405 inches single shaft
Shaft Length
0.7200 inches single shaft and 0.7400 inches single shaft
Schematic Diagram Designator
1 y-rotor, 1 y-stator
Body Size
28
Stator Input Voltage Rating In Volts
90.0
Stator Input Current Rating
748.0 milliamperes
Stator Input Electrical Power Rating
7.7 watts
Frequency In Hertz
60.0
Zrs Resistance In Ohms
44.00
Rotor Dc Resistance In Ohms
24.00
Stator Dc Resistance In Ohms
19.00
Phase Shift Angle In Deg
6.500 input to output
Spline Tooth Quantity
22 single shaft
Actuator Friction Torque At Plus 25 Deg Celsius
0.50 inch-ounces
Torque Gradient Per Angular Deg
0.300 inch-ounces
Shaft Maximum Radial Play
0.0008 inches
Shaft End Play
Between 0.0010 inches and 0.0050 inches
Shoulder Length
Between 1.0150 inches and 1.0250 inches
Mounting Surface To Terminal End Distance
3.3850 inches
Spline Tooth Diametral Pitch
96 single shaft
Terminal Location
Rear
Shaft Thread Length
0.6900 inches single shaft and 0.7100 inches single shaft
Shaft Type
Spline single shaft
Transformation Ratio
1.154 rotor to stator
Terminal Type And Quantity
6 screw
Nondefinitive Specification/std Data
31tdx68 type
FSC
5990 Synchros And Resolvers
NIIN
007021990
NSN
5990007021990

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
M20708/68B-001
Cage Code:
81349
Status:
A
MSDS:
Part Number:
31TDX6C
Cage Code:
81349
Status:
A
MSDS:
Part Number:
MILS20708-68
Cage Code:
81349
Status:
A
MSDS:
Part Number:
039509
Cage Code:
80058
Status:
A
MSDS:
Part Number:
31TDX6B
Cage Code:
81349
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 9014900000
  • NAICS: 334511
  • SITC: 87412
  • Description: Parts & accessories for direction finding compasses and other navigational instruments and appliances
  • End Use (Code 22220):
    Marine engines, parts

Q & A

Frequently asked questions for NSN 5990-00-702-1990
What are the manufacturers of nsn 5990007021990?
Does this nsn 5990007021990 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5990007021990
A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. does not include variable resistors, goniometers, variable transformers, or items with dials.
Does nsn 5990007021990 contain any precious metals?
No precious metal content.
Does nsn 5990007021990 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5990007021990?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
02071
FIIG:
A07800
App. Key:
B
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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