Differential Transmitter Synchro NSN 5990-00-018-9720

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: 5990-00-018-9720

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Features and Characteristics

Body Material

Steel, stainless

Body Style

Standard round d

Shoulder Diameter

Between 1.9850 inches and 1.9900 inches

Pilot Diameter

0.5950 inches

Second Shoulder Diameter

Between 1.9985 inches and 1.9995 inches

Second Shoulder Length

0.1700 inches

Overall Length

4.5490 inches

Flange Diameter

Between 2.2490 inches and 2.2500 inches

Flange Thickness

0.2500 inches

Body Diameter

1.9900 inches

Shaft Diameter

0.2403 inches single shaft and 0.2405 inches single shaft

Shaft Length

0.7190 inches single shaft

Maximum Tempurature Rise

25.0 degrees celsius

Body Size

Stator Input Voltage Rating In Volts

90.0

Stator Input Current Rating

866.0 milliamperes

Stator Input Electrical Power Rating

7.0 milliwatts

Frequency In Hertz

400.0

Zro Impedance Angle In Deg

Between 47.00 and 53.00

Zso Impedance Magnitude In Ohms

Between 90.00 and 112.00

Zso Impedance Angle In Deg

84.00

Zrs Impedance Magnitude In Ohms

Between 11.00 and 15.00

Zrs Impedance Angle In Deg

Between 47.00 and 53.00

Phase Shift Angle In Deg

2.000 input to output

Electrical Error Angular Range In Minutes

-8.0/+8.0

Spline Tooth Quantity

22 single shaft

Actuator Friction Torque At Plus 25 Deg Celsius

0.20 inch-ounces

Torque Gradient Per Angular Deg

0.160 inch-ounces

Pilot Length

0.0430 inches

Shoulder Length

0.2500 inches

Aft Of First Flange Diameter

Between 1.9985 inches and 1.9995 inches

Mounting Surface To Terminal End Distance

3.8300 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

0.2900 inches single shaft

Shaft Type

Spline w/threads single shaft

Transformation Ratio

1.154 rotor to stator

Shaft Thread Size

0.250 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

5 screw

Specification Data

81349-mil-s-20708/48 government specification

FSC

5990 Synchros And Resolvers

NIIN

000189720

NSN

5990000189720

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

15A493-1

Cage Code:

80048

Status:

MSDS:

Part Number:

M20708/48-01C

Cage Code:

81349

Status:

MSDS:

Part Number:

MILS20708-48

Cage Code:

81349

Status:

MSDS:

Part Number:

23TDX4C

Cage Code:

81349

Status:

MSDS:

Part Number:

23TDX4

Cage Code:

56232

Status:

MSDS:

Part Number:

M20708/48-001

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 5990-00-018-9720

What are the manufacturers of nsn 5990000189720?

Does this nsn 5990000189720 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5990000189720
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 5990000189720 contain any precious metals?
Precious metal content is unknown.

Does nsn 5990000189720 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5990000189720?
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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