AS20708/19

View detailed technical data, stock status, and sourcing information for: AS20708/19
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-913-5159

Item Name Code

02072

Assigment Date

01/01/1960 (66 years ago)

standard round c body style, 1.3115 inches minimum and 1.3120 inches maximum shoulder diameter, 1.4320 inches minimum and 1.4370 inches maximum flange diameter, 2.3120 inches nominal overall length, 0.8745 inches minimum and 0.8750 inches maximum pilot diameter

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: standard round c
Shoulder Diameter: 1.3115 inches minimum and 1.3120 inches maximum
Pilot Diameter: 0.8745 inches minimum and 0.8750 inches maximum
Overall Length: 2.3120 inches nominal
Flange Diameter: 1.4320 inches minimum and 1.4370 inches maximum
Flange Thickness: 0.0930 inches nominal
Undercut Diameter: 1.3120 inches nominal
Undercut Width: 0.0780 inches nominal
Shaft Diameter: 0.1870 inches minimum and 0.1872 inches maximum single shaft
Shaft Length: 0.5400 inches nominal single shaft
Fragility Factor: moderately rugged
Maximum Temp Rise: 35.0 celsius
Body Size: 15
Rotor Input Voltage Rating In Volts: 115.0 nominal
Frequency In Hertz: 400.0 nominal
Rotor Input Current Rating: 190.0 milliamperes maximum
Rotor Input Electrical Power Rating: 2.9 watts maximum
Zss Impedance Magnitude In Ohms: 50.00 minimum and 82.00 maximum
Zss Impedance Angle In Deg: 33.00 minimum and 46.00 maximum
Phase Shift Angle In Deg: 5.000 input to output maximum
Maximum Fundamental Null Voltage In Millivolts Per Volt: 50.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt: 100.00
Electrical Error Angular Range In Minutes: -6.0 to 6.0
Spline Tooth Quantity: 21 single shaft
Receiver Error Angular Range In Minutes: -45.0 to 45.0
Torque Gradient Per Angular Deg: 0.030 inch-ounces minimum
Alignment Hole Quantity: 4
Pilot Length: 0.0400 inches nominal
Shoulder Length: unable to decode
Mounting Surface To Terminal End Distance: 1.7720 inches nominal
Spline Tooth Diametral Pitch: 120 single shaft
Shaft Thread Series Designator: unef single shaft
Shaft Thread Direction: right-hand single shaft
Shaft Thread Class: 2a single shaft
Body Material: steel corrosion resisting
Terminal Location: rear
Shaft Thread Length: 0.1850 inches nominal single shaft
Shaft Type: spline w/threads single shaft
Alignment Hole Depth: 0.1250 inches minimum
Transformation Ratio: 0.783 stator to rotor nominal
Alignment Hole Bolt Circle Diameter: 1.1000 inches nominal
Shaft Nominal Thread Size: 0.100 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", "nominal", etc.)."
Terminal Type And Quantity: 5 wire lead
Specification/Standard Data: 81349-mil-s-20708/19 government specification

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5990-00-578-6255	No Name Available	08/01/1988
5990-00-677-6472	No Name Available	10/30/1967
5990-00-767-4777	No Name Available	04/01/1982
5990-00-805-7002	No Name Available	12/30/1968
5990-00-937-9905	No Name Available	07/03/2013
5990-01-049-7505	No Name Available	09/06/2023

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
033243	Receiver Synchro
15TR4A	Receiver Synchro
15TRX4	Receiver Synchro
15TRX4A	Receiver Synchro
229-3054-020	Receiver Synchro
302B033243	Receiver Synchro
7674777	Receiver Synchro
AS20708/19	Receiver Synchro
M20708-19E001	Receiver Synchro
M20708/19-001	Receiver Synchro
M20708/19-01A	Receiver Synchro
MIL-S-20708/19	Receiver Synchro
SAE-AS20708/19	Receiver Synchro

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5990-00-913-5159?

The FSCG of the NSN 5990-00-913-5159 is 5990

Does the NSN 5990-00-913-5159 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-913-5159 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 5990-00-913-5159 contain precious materials?

Item does not contain precious metal.

Does NSN 5990-00-913-5159 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5990-00-913-5159 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960