Differential Transmitter Synchro NSN 5990-00-179-1871

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: 5990-00-179-1871

Stock Availability

NSN 5990001791871 availability
(as of 08/30/2023).

NS: 14
NE: 5

Note: Availability of this item may have changed since it was last checked. Request a quote for an updated price and availability quote.

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Related NSN

Features and Characteristics

Body Material

Steel, corrosion resisting

Body Style

Standard round c

Shoulder Diameter

Between 0.9995 inches and 1.0000 inches

Pilot Diameter

Between 0.6245 inches and 0.6250 inches

Overall Length

2.4060 inches

Flange Diameter

Between 1.0570 inches and 1.0620 inches

Flange Thickness

0.0930 inches

Undercut Diameter

0.9750 inches

Undercut Width

0.0620 inches

Shaft Diameter

0.1872 inches single shaft

Shaft Length

0.5550 inches single shaft

Fragility Factor

Moderately rugged

Maximum Tempurature Rise

20.0 degrees celsius

Body Size

Stator Input Voltage Rating In Volts

90.0

Stator Input Current Rating

49.0 milliamperes

Stator Input Electrical Power Rating

530.0 milliwatts

Frequency In Hertz

400.0

Zso Impedance Magnitude In Ohms

Between 1590.00 and 2050.00

Zso Impedance Angle In Deg

Between 79.00 and 85.00

Zrs Impedance Magnitude In Ohms

Between 470.00 and 570.00

Zrs Impedance Angle In Deg

Between 23.00 and 33.00

Phase Shift Angle In Deg

4.000 input to output

Maximum Fundamental Null Voltage In Millivolts Per Volt

60.00 output

Maximum Total Null Voltage Output In Millivolts Per Volt

90.00

Electrical Error Angular Range In Minutes

-7.0 to 7.0

Spline Tooth Quantity

21 single shaft

Actuator Friction Torque At Plus 25 Deg Celsius

0.07 inch-ounces

Alignment Hole Quantity

Pilot Length

0.0620 inches

Shoulder Length

0.0620 inches

Mounting Surface To Terminal End Distance

1.8510 inches

Spline Tooth Diametral Pitch

120 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

0.2000 inches single shaft

Shaft Type

Spline w/threads single shaft

Alignment Hole Depth

0.1250 inches

Transformation Ratio

1.154 rotor to stator

Alignment Hole Bolt Circle Diameter

0.8120 inches

Shaft Thread Size

0.190 inches single shaft

Test Data Document

81349-mil-s-20708 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Terminal Type And Quantity

6 screw

Specification Data

81349-mil-s-20708/81 government specification

FSC

5990 Synchros And Resolvers

NIIN

001791871

NSN

5990001791871

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

11CDX4A

Cage Code:

81349

Status:

MSDS:

Part Number:

M20708/81-01B

Cage Code:

81349

Status:

MSDS:

Part Number:

AS20708/81

Cage Code:

0VH01

Status:

MSDS:

Part Number:

11CDX4B

Cage Code:

81349

Status:

MSDS:

Part Number:

3522 500 05266

Cage Code:

H0203

Status:

MSDS:

Part Number:

MILS20708-81

Cage Code:

81349

Status:

MSDS:

Part Number:

M20708/81-001

Cage Code:

81349

Status:

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 5990-00-179-1871

What are the manufacturers of nsn 5990001791871?

Does this nsn 5990001791871 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5990001791871
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 5990001791871 contain any precious metals?
Precious metal content is unknown.

Does nsn 5990001791871 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5990001791871?
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:

Cond. Code:

Status:

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Quality Inspected Parts
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