M20708/8-01C

View detailed technical data, stock status, and sourcing information for: M20708/8-01C
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-924-4164

Item Name Code

02073

Assigment Date

01/20/1966 (60 years ago)

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.

2.3560 inches nominal overall length, 0.6245 inches minimum and 0.6250 inches maximum pilot diameter, 0.9995 inches minimum and 1.0000 inches maximum shoulder diameter, 1.0570 inches minimum and 1.0620 inches maximum flange diameter, standard round c body style

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: 0.9995 inches minimum and 1.0000 inches maximum
Pilot Diameter: 0.6245 inches minimum and 0.6250 inches maximum
Overall Length: 2.3560 inches nominal
Flange Diameter: 1.0570 inches minimum and 1.0620 inches maximum
Flange Thickness: 0.0930 inches nominal
Undercut Diameter: 0.9750 inches nominal
Undercut Width: 0.0620 inches nominal
Shaft Diameter: 0.1870 inches minimum and 0.1872 inches maximum single shaft
Shaft Length: 0.5620 inches nominal single shaft
Fragility Factor: moderately rugged
Maximum Temp Rise: 20.0 celsius
Body Size: 11
Rotor Input Voltage Rating In Volts: 26.0 nominal
Frequency In Hertz: 400.0 nominal
Rotor Input Current Rating: 130.0 milliamperes maximum
Rotor Input Electrical Power Rating: 340.0 milliwatts nominal
Zro Impedance Magnitude In Ohms: 200.00 minimum and 300.00 maximum
Zro Impedance Angle In Deg: 80.50 minimum and 84.00 maximum
Zss Impedance Magnitude In Ohms: 6.00 minimum and 12.00 maximum
Zss Impedance Angle In Deg: 18.00 minimum and 30.00 maximum
Phase Shift Angle In Deg: 4.000 input to output maximum
Maximum Fundamental Null Voltage In Millivolts Per Volt: 12.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt: 19.00
Electrical Error Angular Range In Minutes: -7.0 to 7.0
Spline Tooth Quantity: 21 single shaft
Torque Gradient Per Angular Deg: 0.070 inch-ounces maximum
Alignment Hole Quantity: 4
Pilot Length: 0.0620 inches nominal
Shoulder Length: unable to decode
Mounting Surface To Terminal End Distance: 2.3560 inches nominal
Spline Tooth Diametral Pitch: 120 single shaft
Shaft Thread Series Designator: unf 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: 0.1900 inches nominal single shaft
Shaft Type: spline w/threads single shaft
Alignment Hole Depth: 0.1250 inches minimum
Transformation Ratio: 0.454 rotor to stator nominal
Alignment Hole Bolt Circle Diameter: 0.8120 inches nominal
Shaft Nominal 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", "nominal", etc.)."
Terminal Type And Quantity: 5 screw
Specification/Standard Data: 81349-mil-s-20708/8 government specification

Replaces National Stock Numbers

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

NSN	Name	Date
5990-00-724-2607	No Name Available	07/24/1968
5990-00-859-8702	No Name Available	05/17/1971
5990-00-949-3483	No Name Available	12/19/2007
5990-01-015-1092	No Name Available	10/01/1986
5990-01-269-0592	No Name Available	07/01/2001

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
11CX4C	Transmitter Synchro
1599017210L	Transmitter Synchro
26V-11CX4	Transmitter Synchro
26V11CX4A	Transmitter Synchro
26V11CX4B	Transmitter Synchro
26V11CX4C	Transmitter Synchro
450900-9243-003	Transmitter Synchro
450900-9243-3	Transmitter Synchro
5990PL1373988	Transmitter Synchro
615558-000	Transmitter Synchro
8190W10P001	Transmitter Synchro
AS20708/8	Transmitter Synchro
M20708/112-01C	Transmitter Synchro
M20708/2-01E	Transmitter Synchro
M20708/8-01C	Transmitter Synchro
MIL-S-20708/8	Transmitter Synchro
SAE-AS20708/8	Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-924-4164?

The FSCG of the NSN 5990-00-924-4164 is 5990

Does the NSN 5990-00-924-4164 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-924-4164 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 5990-00-924-4164 contain precious materials?

Item does not contain precious metal.

Does NSN 5990-00-924-4164 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 5990-00-924-4164 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Thu, Jan 20, 1966