Transmitter Synchro

MIL-S-20708/14

(NSN) National Stock Number

5990-01-305-7228

Federal Supply Classification

5990 Synchros and Resolvers

Item Name Code

02073

Schedule B Code

9014900000

Summary

Standard round b body style, 1.3115 inches minimum and 1.3120 inches maximum shoulder diameter, 0.8745 inches minimum and 0.8750 inches maximum pilot diameter, 2.3320 inches maximum overall length, 1.4320 inches minimum and 1.4370 inches maximum flange diameter, 0.0880 inches minimum and 0.0980 inches maximum flange thickness

DAC	HCC	DMIL	RNCC
E	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	TX

Identification

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.

INC	FIIG	Concept	Condition
02073	A07800	1	1

Specifications

Body Style

standard round b

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

Shoulder Diameter

1.3115 inches minimum and 1.3120 inches maximum

Details

The length of a straight line which passes through the center of a shoulder,and terminates at the circumference.

Pilot Diameter

0.8745 inches minimum and 0.8750 inches maximum

Details

The length of a straight line which passes through the center of that portion used to guide the item and terminates at the circumference.

Overall Length

2.3320 inches maximum

Details

The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

Flange Diameter

1.4320 inches minimum and 1.4370 inches maximum

Details

The length of a straight line which passes through the center of a flange,and terminates at the circumference.

Flange Thickness

0.0880 inches minimum and 0.0980 inches maximum

Details

A measurement of the smallest dimension of a flange,in distinction from length or width.

Undercut Width

0.0730 inches minimum and 0.0830 inches maximum

Details

None.

Shaft Diameter

0.1867 inches minimum and 0.1872 inches maximum single shaft

Details

The length of a straight line which passes through the center of a shaft,and terminates at the circumference.

Shaft Length

0.4900 inches minimum and 0.5100 inches maximum single shaft

Details

A measurement of the longest dimension of the shaft,in distinction from width.

Maximum Temp Rise

20.0 deg celsius

Details

The maximum permissible temperature increase in the item as a result of its operation under normal conditions.

Body Size

Details

An alpha and/or numeric designation indicating the size by which the body is identified.

Rotor Input Voltage Rating In Volts

115.0 nominal

Details

The value of the primary excitation voltage for which the rotor is rated,expressed in volts.

Frequency In Hertz

400.0 nominal

Details

The cycles per second /hertz/ of the alternating current.

Rotor Input Current Rating

85.0 milliamperes maximum

Details

The value of the primary excitation current for which the rotor is rated,with stator /secondary/ circuit open.

Rotor Input Electrical Power Rating

1.2 watts maximum

Details

The value of the primary /electrical/ excitation power for which the rotor is rated.

Zro Impedance Magnitude In Ohms

1402.00 minimum and 1643.00 maximum

Details

The magnitude part /z/ of the rotor impedance with the stator open /zro/,expressed in ohms.

Zro Impedance Angle In Deg

81.40 minimum and 84.60 maximum

Details

The angle part /o/ of the rotor impedance with the stator open /zro/,expressed in degrees.

Zss Impedance Magnitude In Ohms

123.00 minimum and 138.00 maximum

Details

The magnitude part /z/ of the stator impedance with the rotor shorted /zss/,expressed in ohms.

Zss Impedance Angle In Deg

26.50 minimum and 31.50 maximum

Details

The angle part /o/ of the stator impedance with the rotor shorted /zss/,expressed in degrees.

Phase Shift Angle In Deg

4.000 input to output nominal

Details

The difference between the phase time of two or more voltages or currents of the same frequency,at the same instant of time,expressed in degrees.

Maximum Fundamental Null Voltage In Millivolts Per Volt

32.00 output

Details

The maximum voltage,without harmonics,induced in the secondary circuit at the null angle rotor position,expressed in millivolts per volt.

Maximum Total Null Voltage Output In Millivolts Per Volt

60.00

Details

The maximum voltage,including harmonics,induced in the secondary circuit at the null angle rotor position,expressed in millivolts per volt.

Electrical Error Angular Range In Minutes

-6.0 to 6.0

Details

The limits of permissible deviation in angular arc error from electrical zero,expressed in minutes.

Actuator Friction Torque At Plus 25 Deg Celsius

0.05 inch-ounces maximum

Details

The amount of rotary force that must be applied to the actuator to cause rotation,at plus 25 degrees celsius.

Alignment Hole Quantity

Details

The number of holes provided for aligning the item.

Shaft Maximum Radial Play

0.0006 inches

Details

The maximum shaft displacement perpendicular to the shaft axis due to reversal of a specified force applied perpendicular to the shaft axis,and measured at a specified distance from the front surface of the unit.

Shaft End Play

0.0010 inches nominal

Details

The axial shaft displacement due to reversal of a specified axial force,measured at the end of the shaft.

Pilot Length

0.0350 inches minimum and 0.0450 inches maximum

Details

A measurement of the longest dimension of a pilot,in distinction from width.

Shoulder Length

0.1270 inches minimum and 0.1370 inches maximum

Details

None.

Mounting Surface To Terminal End Distance

1.7770 inches maximum

Details

None.

Shaft Maximum Runout

0.0008 inches

Details

The eccentricity of the shaft diameter with respect to the rotational axis of the shaft,measured at a specified distance from the end of the shaft,when the body of the item is held fixed and the shaft is rotated.

Body Material

steel corrosion resisting

Details

The chemical compound or mechanical mixture properties of which the body is fabricated.

Terminal Location

rear

Details

Indicates the location of the terminal/s/ on the item.

Shaft Slot Depth

0.0250 inches nominal single shaft

Details

None.

Shaft Slot Width

0.0200 inches nominal single shaft

Details

None.

Shaft Type

round, slotted single shaft

Details

Indicates the type of shaft included on the item.

Alignment Hole Depth

0.1250 inches minimum

Details

None.

Transformation Ratio

0.783 rotor to stator nominal

Details

The ratio of the output voltage to the input voltage at maximum coupling.

Alignment Hole Bolt Circle Diameter

1.0970 inches minimum and 1.1030 inches maximum

Details

None.

Shaft Radial Play Determining Weight

8.0 ounces

Details

The force (load) applied perpendicular to the shaft axis to determine radial play.

Shaft End Play Determining Weight

16.0 ounces

Details

The force (load) applied parallel to the shaft axis to determine end play.

Special Features

shaft radial play test point 0.125 inches nom.

Details

Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification on one or more other functions.

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", "nominal", etc.).

Details

The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.

Terminal Type And Quantity

6 screw

Details

Indicates the type and number of terminals for providing electrical connection.

Specification/Standard Data

81349-mil-s-20708/14 government specification

Details

The document designator of the specification or standard which established the item of supply.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
904971	34228	5	-	5	1	-	ZZ
M20708/14-02D	14404	5	-	5	1	-	ZZ
AS20708/14	0U583	E	-	5	9	-	ZZ
M20708/14-02D	0U583	3	-	3	2	-	ZZ
SAE-AS20708/14	0U583	E	-	3	1	-	ZZ
AS20708/14	81343	E	-	5	9	-	ZZ
M20708/14-02D	81343	3	-	5	9	-	ZZ
M20708/14-02D	99932	5	-	5	1	-	ZZ
M20708/14-02D	81349	E	-	5	9	-	TX

Material and Special Handling

Hazardous material, precious metals, criticality, and electrostatic discharge indicators.

HMIC	PMIC	ESD/EMI	Criticality
N	A	-	-

Freight

Universal / National Freight and Handling Information

UFC	HMC	LTL	LCL
35080	-	W	-

RVC	WCC	TCC	SHC
-	593	Z	9

What's Included?

Certificate of Conformity
QC Inspection prior to shipping
On time delivery
Friendly service to back every order

Manufacturer

MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

CAGE: 81349

View Products

FAQs

Frequently asked questions for NSN 5990-01-305-7228

What is the NIIN of the NSN 5990-01-305-7228?

The National Item Identification Number (NIIN) of the NSN 5990-01-305-7228 is 01-305-7228

When the NSN 5990-01-305-7228 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Aug 10, 1989

Does the NSN 5990-01-305-7228 contain any precious metals?

Does not contain precious metal

Does the NSN 5990-01-305-7228 contain any hazardous material?

No data in HMIRS

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