31TX4A

View detailed technical data, stock status, and sourcing information for: 31TX4A
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5990 Synchros and Resolvers

National Stock Number

5990-00-503-0386

Item Name Code

02073

Assigment Date

01/01/1963 (63 years ago)

An item consisting of a rotor and a stator inductively coupled. It usually has two rotor windings displaced from each other by 90 degrees and two stator windings similarly displaced. The output voltage(s) is a trigonometric function of the input voltage(s) and the angular displacement of the rotor with respect to the stator. See also synchro (as modified) and goniometer, electrical. Excludes:transolver, electrical and potentiometer sine/cosine electrical resolvers.

2.7000 inches maximum shoulder diameter, 2.7500 inches nominal second shoulder diameter, standard round d body style, 0.3750 inches nominal second shoulder length, 0.3120 inches nominal 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 d
Shoulder Diameter: 2.7000 inches maximum
Pilot Diameter: 0.3120 inches nominal
Second Shoulder Diameter: 2.7500 inches nominal
Second Shoulder Length: 0.3750 inches nominal
Overall Length: 5.2000 inches maximum
Flange Diameter: 3.1000 inches maximum
Flange Thickness: 0.2500 inches nominal
Body Diameter: 2.7000 inches maximum
Shaft Diameter: 0.2500 inches maximum single shaft
Shaft Length: 0.8100 inches nominal single shaft
Schematic Diagram Designator: 1 y-rotor, 1 stator
Fragility Factor: moderately rugged
Maximum Temp Rise: 60.0 celsius
Body Size: 31
Rotor Input Voltage Rating In Volts: 115.0 nominal
Frequency In Hertz: 400.0 nominal
Rotor Input Current Rating: 1.76 amperes maximum
Rotor Input Electrical Power Rating: 17.0 watts maximum
Maximum Fundamental Null Voltage In Millivolts Per Volt: 75.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt: 100.00
Electrical Error Angular Range In Minutes: -8.0 to 8.0
Actuator Friction Torque At Minus 55 Deg Celsius: 0.50 inch-ounces maximum
Actuator Friction Torque At Plus 25 Deg Celsius: 0.20 inch-ounces maximum
Torque Gradient Per Angular Deg: 0.670 inch-ounces minimum
Shaft Maximum Radial Play: 0.0005 inches
Shaft End Play: 0.0040 inches maximum
Pilot Length: 0.0300 inches nominal
Aft Of First Flange Diameter: 2.7500 inches nominal
Mounting Surface To Terminal End Distance: 4.4300 inches maximum
Shaft Maximum Runout: 0.0005 inches
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: 0.3000 inches nominal single shaft
Shaft Type: round, threaded single shaft
Transformation Ratio: 0.783 stator to rotor nominal
Shaft Nominal Thread Size: 0.250 inches single shaft
Shaft Radial Play Determining Weight: 16.0 ounces
Shaft End Play Determining Weight: 48.0 ounces
Special Features: shaft radial play test point 0.125 inches max
Test Data Document: "81349-mil-s-16892 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-16892-31tx4a government specification

Replaces National Stock Numbers

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

NSN	Name	Date
5990-00-503-0589	No Name Available	01/01/1963
5990-00-636-4145	No Name Available	01/01/1963
5990-00-927-3124	No Name Available	01/22/1980

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
0S3883TYPE31TX4	Transmitter Synchro
10515526	Transmitter Synchro
121F2A	Transmitter Synchro
1480407	Transmitter Synchro
31TX4A	Transmitter Synchro
31TX4AMK35	Transmitter Synchro
878447	Transmitter Synchro
988651	Transmitter Synchro
E11360	Transmitter Synchro
LD267400	Transmitter Synchro
LD273384	Transmitter Synchro
LD413194	Transmitter Synchro
MIL-S-16892	Transmitter Synchro

FAQs

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

What is the FSCG of the NSN 5990-00-503-0386?

The FSCG of the NSN 5990-00-503-0386 is 5990

Does the NSN 5990-00-503-0386 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5990-00-503-0386 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 5990-00-503-0386 contain precious materials?

Precious metal content is unknown

Does NSN 5990-00-503-0386 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 5990-00-503-0386 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963