AS20708/74

View detailed technical data, stock status, and sourcing information for: AS20708/74
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-852-2369

Item Name Code

27218

Assigment Date

11/25/1966 (59 years ago)

1.6250 inches nominal pilot diameter, 3.3290 inches minimum and 3.3340 inches maximum shoulder diameter, 3.3740 inches minimum and 3.3750 inches maximum second shoulder diameter, unable to decode body material, standard round double flange a 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 double flange a
Shoulder Diameter: 3.3290 inches minimum and 3.3340 inches maximum
Pilot Diameter: 1.6250 inches nominal
Second Shoulder Diameter: 3.3740 inches minimum and 3.3750 inches maximum
Second Shoulder Length: 0.3750 inches nominal
Overall Length: 5.9500 inches nominal
Flange Diameter: 3.6240 inches minimum and 3.6250 inches maximum
Flange Thickness: 0.2500 inches nominal
Body Diameter: 3.3850 inches minimum and 3.3900 inches maximum
Shaft Diameter: 0.2403 inches minimum and 0.2405 inches maximum single shaft
Shaft Length: 0.7000 inches nominal single shaft
Fragility Factor: moderately rugged
Distance Between Flanges: 1.8120 inches nominal
Maximum Temp Rise: 35.0 celsius
Body Size: 37
Rotor Input Voltage Rating In Volts: 115.0 nominal
Frequency In Hertz: 60.0 nominal
Rotor Input Current Rating: 830.0 milliamperes maximum
Rotor Input Electrical Power Rating: 9.25 watts maximum
Zss Impedance Magnitude In Ohms: 7.00 minimum and 10.00 maximum
Zss Impedance Angle In Deg: 30.00 minimum and 40.00 maximum
Phase Shift Angle In Deg: 3.000 input to output nominal
Maximum Fundamental Null Voltage In Millivolts Per Volt: 35.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt: 170.00
Electrical Error Angular Range In Minutes: -10.0 to 10.0
Spline Tooth Quantity: 22 single shaft
Receiver Error Angular Range In Minutes: -36.0 to 36.0
Torque Gradient Per Angular Deg: 0.900 inch-ounces nominal
Pilot Length: 0.1600 inches nominal
Shoulder Length: unable to decode
Aft Of Second Flange Diameter: 3.3740 inches minimum and 3.3750 inches maximum
Mounting Surface To Terminal End Distance: 5.0600 inches nominal
Spline Tooth Diametral Pitch: 96 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: 0.3100 inches nominal single shaft
Shaft Type: spline w/threads single shaft
Transformation Ratio: 0.783 rotor to stator nominal
Shaft Nominal Thread Size: 0.250 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-20708/74 government specification

Replaces National Stock Numbers

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

NSN	Name	Date
5990-00-677-6508	No Name Available	07/01/1992
5990-01-056-3002	No Name Available	04/01/1982
5990-01-084-2995	No Name Available	07/01/1992
5990-01-221-9616	No Name Available	10/01/1988

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
10-1532 PIECE 37	Receiver-Transmitter Synchro
1878084 PIECE 77	Receiver-Transmitter Synchro
37TR6	Receiver-Transmitter Synchro
37TRX6	Receiver-Transmitter Synchro
37TRX6A	Receiver-Transmitter Synchro
37TRX6B	Receiver-Transmitter Synchro
37TX6B	Receiver-Transmitter Synchro
37TXCB	Receiver-Transmitter Synchro
5990PL1373980	Receiver-Transmitter Synchro
AS20708/74	Receiver-Transmitter Synchro
AY3701A7D1	Receiver-Transmitter Synchro
C3251-08	Receiver-Transmitter Synchro
M20708/73A	Receiver-Transmitter Synchro
M20708/74-01A	Receiver-Transmitter Synchro
M20708/74C-001	Receiver-Transmitter Synchro
MIL-S-20708/73	Receiver-Transmitter Synchro
MIL-S-20708/74	Receiver-Transmitter Synchro
SAE-AS20708/74	Receiver-Transmitter Synchro
TRX37-6N1	Receiver-Transmitter Synchro
VTRX37-6A1	Receiver-Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-852-2369?

The FSCG of the NSN 5990-00-852-2369 is 5990

Does the NSN 5990-00-852-2369 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-852-2369 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 5990-00-852-2369 contain precious materials?

Item does not contain precious metal.

Does NSN 5990-00-852-2369 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 5990-00-852-2369 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Nov 25, 1966