M20708-32E001

View detailed technical data, stock status, and sourcing information for: M20708-32E001
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-997-5237

Item Name Code

27218

Assigment Date

11/18/1966 (59 years ago)

0.9370 inches minimum and 0.9375 inches maximum pilot diameter, 1.5615 inches minimum and 1.5620 inches maximum shoulder diameter, 3.0600 inches nominal overall length, unable to decode body material, 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 Material: unable to decode
Body Style: standard round c
Shoulder Diameter: 1.5615 inches minimum and 1.5620 inches maximum
Pilot Diameter: 0.9370 inches minimum and 0.9375 inches maximum
Overall Length: 3.0600 inches nominal
Flange Diameter: 1.7450 inches minimum and 1.7500 inches maximum
Flange Thickness: 0.0930 inches nominal
Undercut Diameter: 1.6250 inches nominal
Undercut Width: 0.0780 inches nominal
Shaft Diameter: 0.1873 inches minimum and 0.1875 inches maximum single shaft
Shaft Length: 0.5400 inches nominal single shaft
Fragility Factor: moderately rugged
Maximum Temp Rise: 35.0 celsius
Body Size: 18
Rotor Input Voltage Rating In Volts: 115.0 nominal
Frequency In Hertz: 400.0 nominal
Rotor Input Current Rating: 400.0 milliamperes maximum
Rotor Input Electrical Power Rating: 4.0 watts maximum
Zss Impedance Magnitude In Ohms: 16.00 minimum and 21.00 maximum
Zss Impedance Angle In Deg: 38.00 minimum and 45.00 maximum
Phase Shift Angle In Deg: 4.000 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: -8.0 to 8.0
Spline Tooth Quantity: 21 single shaft
Receiver Error Angular Range In Minutes: -45.0 to 45.0
Torque Gradient Per Angular Deg: 0.100 inch-ounces minimum
Alignment Hole Quantity: 4
Pilot Length: 0.0400 inches nominal
Shoulder Length: unable to decode
Mounting Surface To Terminal End Distance: 2.5200 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
Terminal Location: rear
Shaft Thread Length: 0.2000 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: 1.2500 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-20708/32 government specification

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5990-00-467-1937	No Name Available	10/01/1975

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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:

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M20708-32E001	Receiver-Transmitter Synchro
M20708/32-001	Receiver-Transmitter Synchro
M20708/32-01A	Receiver-Transmitter Synchro
MIL-S-20708/32	Receiver-Transmitter Synchro
SAE-AS20708/32	Receiver-Transmitter Synchro