Differential Transmitter Synchro NSN 5990-00-677-6480

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: 5990-00-677-6480

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Features and Characteristics

Body Material

Steel, stainless

Body Style

Standard round c

Shoulder Diameter

Between 1.5615 inches and 1.5620 inches

Pilot Diameter

Between 0.9370 inches and 0.9375 inches

Overall Length

3.2050 inches

Flange Diameter

Between 1.7450 inches and 1.7500 inches

Flange Thickness

0.0930 inches

Undercut Diameter

1.6250 inches

Undercut Width

0.0780 inches

Shaft Diameter

0.1870 inches single shaft and 0.1872 inches single shaft

Shaft Length

0.5400 inches single shaft

Maximum Tempurature Rise

20.0 degrees celsius

Body Size

Stator Input Voltage Rating In Volts

90.0

Stator Input Current Rating

450.0 milliamperes

Stator Input Electrical Power Rating

4.5 watts

Frequency In Hertz

400.0

Zso Impedance Magnitude In Ohms

Between 178.00 and 266.00

Zso Impedance Angle In Deg

Between 83.00 and 87.00

Zrs Impedance Magnitude In Ohms

Between 26.00 and 38.00

Zrs Impedance Angle In Deg

Between 47.00 and 56.00

Phase Shift Angle In Deg

3.000 input to output

Electrical Error Angular Range In Minutes

-8.0/+8.0

Spline Tooth Quantity

21 single shaft

Actuator Friction Torque At Minus 55 Deg Celsius

0.10 inch-ounces

Torque Gradient Per Angular Deg

0.060 inch-ounces

Pilot Length

0.0400 inches

Shoulder Length

0.1320 inches

Mounting Surface To Terminal End Distance

2.6700 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

Terminal Location

Rear

Shaft Thread Length

0.2000 inches single shaft

Shaft Type

Spline w/threads single shaft

Transformation Ratio

1.154 rotor to stator

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-20708/31 government specification

FSC

5990 Synchros And Resolvers

NIIN

006776480

NSN

5990006776480

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

M20708/31-01C

Cage Code:

81349

Status:

MSDS:

Part Number:

MIL-S-20708/31

Cage Code:

81349

Status:

MSDS:

Part Number:

18TDX4C

Cage Code:

81349

Status:

MSDS:

Part Number:

18TDX4B

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 5990-00-677-6480

What are the manufacturers of nsn 5990006776480?

Military Specifications (81349)

Does this nsn 5990006776480 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5990006776480
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 5990006776480 contain any precious metals?
Precious metal content is unknown.

Does nsn 5990006776480 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5990006776480?
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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