Receiver-Transmitter Synchro

AS20708/35

(NSN) National Stock Number

5990-00-905-9556

Federal Supply Classification

5990 Synchros and Resolvers

Item Name Code

27218

Schedule B Code

9014900000

Summary

Steel, stainless body material, standard round c body style, 1.5615 inches minimum and 1.5620 inches maximum shoulder diameter, 0.9370 inches minimum and 0.9375 inches maximum pilot diameter, 3.0600 inches nominal overall length, 1.7450 inches minimum and 1.7500 inches maximum flange diameter

DAC	HCC	DMIL	RNCC
E	-	-	5

RNVC	SADC	MSDS	RNAAC
9	-	-	ZZ

Identification

A synchro having a dual purpose. It may be used in applications requiring either a receiver or transmitter. For synchros having a single purpose, see synchro, receiver and synchro, transmitter.

INC	FIIG	Concept	Condition
27218	A07800	1	1

Specifications

Body Material

steel, stainless

Details

The basic material of which the body is fabricated. please use mrc matt withisac coding for body in place of this discontinued mrc.

Body Style

standard round c

Details

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

Shoulder Diameter

1.5615 inches minimum and 1.5620 inches maximum

Details

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

Pilot Diameter

0.9370 inches minimum and 0.9375 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

3.0600 inches nominal

Details

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

Flange Diameter

1.7450 inches minimum and 1.7500 inches maximum

Details

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

Flange Thickness

0.0930 inches nominal

Details

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

Undercut Diameter

1.6250 inches nominal

Details

None.

Undercut Width

0.0780 inches nominal

Details

None.

Shaft Diameter

0.1870 inches minimum single shaft 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

0.5400 inches nominal single shaft

Details

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

Fragility Factor

moderately rugged

Details

The measure of sensitivity of the item to be packaged. a factor used by packaging engineers in devising proper cushioning in a package.

Maximum Temp Rise

40.0 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

60.0 nominal

Details

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

Rotor Input Current Rating

100.0 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

4.0 watts maximum

Details

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

Zss Impedance Magnitude In Ohms

350.00 minimum and 430.00 maximum

Details

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

Zss Impedance Angle In Deg

18.00 minimum and 22.00 maximum

Details

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

Phase Shift Angle In Deg

16.000 input to output maximum

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

50.00 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

300.00

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.

Spline Tooth Quantity

21 single shaft

Details

The number of individual teeth on the splined portion of the shaft.

Receiver Error Angular Range In Minutes

-45.0 to 45.0

Details

The limits of permissible deviation between the position transmitted and the position assumed when the receiver is connected to a transmitter of equal size,expressed in minutes.

Torque Gradient Per Angular Deg

0.050 inch-ounces minimum

Details

The average torque per angular degree developed between two like items,when one rotor is turned /or displaced/ at 2 degree intervals,between a 10 degree counterclockwise position and 10 degree clockwise position.

Alignment Hole Quantity

Details

The number of holes provided for aligning the item.

Pilot Length

0.0400 inches nominal

Details

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

Shoulder Length

0.1320 inches nominal

Details

None.

Mounting Surface To Terminal End Distance

2.5200 inches nominal

Details

None.

Spline Tooth Diametral Pitch

120 single shaft

Details

The number of teeth the splined shaft has per inch of pitch diameter.

Shaft Thread Series Designator

unf single shaft

Details

A designation distinguishing one group of shaft thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

Shaft Thread Direction

right-hand single shaft

Details

The direction of the shaft thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

Shaft Thread Class

2a single shaft

Details

A numeric-alpha designator indicating the ptich diameter tolerance,and an external or internal shaft thread.

Terminal Location

rear

Details

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

Shaft Thread Length

0.2000 inches nominal single shaft

Details

A measurement of the extent of the shaft threads measured on a line parallel to the longitudinal axis.

Shaft Type

spline w/threads single shaft

Details

Indicates the type of shaft included on the item.

Alignment Hole Depth

0.1250 inches minimum

Details

None.

Criticality Code Justification

feat

Details

The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.

Transformation Ratio

0.783 stator to rotor nominal

Details

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

Alignment Hole Bolt Circle Diameter

1.2500 inches nominal

Details

None.

Shaft Nominal Thread Size

0.190 inches single shaft

Details

The length of a straight line passing through the center of the shaft threaded portion,with terminated points at the circumference.

Special Features

stream (std. tensioned replenishment at sea method)

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

81343-as20708 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

5 screw

Details

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

Specification/Standard Data

81343-as20708/35 professional/industrial association 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
2.013030	D2865	3	-	5	2	-	ZG
NB23-070	D2865	3	-	5	2	-	ZG
18TRX6	10112	6	-	C	1	-	ZZ
18TRX6B	10112	3	-	C	1	-	ZZ
TRX18-6N1	10112	E	-	5	1	-	ZZ
685021C30004-1	96169	6	-	C	1	-	ZZ
988659	10001	1	-	C	1	-	TX
988664	10001	1	-	C	1	-	TX
LD287652	10001	1	-	C	1	-	TX
AS20708/35	0U583	E	-	5	9	-	ZZ
M20708/35-01B	0U583	E	-	3	2	-	ZZ
SAE-AS20708/35	0U583	E	-	3	1	-	ZZ
AS20708/35	81343	E	-	5	9	-	ZZ
M20708/35-01B	81343	E	-	5	9	-	ZZ
167620-1	49956	6	-	C	1	-	ZZ
18TRX6A	81349	3	-	C	1	-	ZZ
M20708-35-001	81349	E	-	5	9	-	TX
M20708/35-01B	81349	E	-	5	9	-	TX
M20709-35-001	81349	6	-	C	1	-	ZZ
MIL-S-20708/35	81349	E	-	5	9	-	TX
MILS16892TYPEN018TR6A	81349	3	-	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
34760	-	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

SAE CUSTOMER SERVICE DEPT 2045

CAGE: 0VH01

WARRENDALE , PA , 15096-0001

UNITED STATES

View Products

FAQs

Frequently asked questions for NSN 5990-00-905-9556

What is the NIIN of the NSN 5990-00-905-9556?

The National Item Identification Number (NIIN) of the NSN 5990-00-905-9556 is 00-905-9556

When the NSN 5990-00-905-9556 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Jun 22, 1966

Does the NSN 5990-00-905-9556 contain any precious metals?

Does not contain precious metal

Does the NSN 5990-00-905-9556 contain any hazardous material?

No data in HMIRS

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