Control Transformer Synchro NSN 5990-00-644-0123

Item Description

A synchro consisting of a stator and rotor inductively coupled. The electrical output of the rotor is dependent upon both the position of the rotor and the electrical input to the stator from a transmitter synchro or a differential synchro. Does not include variable resistors, goniometers, or variable transformers.

NSN: 5990-00-644-0123

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Features and Characteristics

Body Material

Steel, corrosion resisting

Body Style

Standard round d

Shoulder Diameter

Between 1.9890 inches and 1.9900 inches

Pilot Diameter

Between 0.5900 inches and 0.6000 inches

Second Shoulder Diameter

Between 1.9985 inches and 1.9995 inches

Second Shoulder Length

0.1700 inches

Overall Length

Between 4.2430 inches and 4.2940 inches

Flange Diameter

Between 2.2490 inches and 2.2500 inches

Flange Thickness

0.2500 inches

Body Diameter

1.9900 inches

Shaft Diameter

0.2403 inches single shaft and 0.2405 inches single shaft

Shaft Length

0.6930 inches single shaft and 0.7190 inches single shaft

Maximum Tempurature Rise

45.0 degrees celsius

Body Size

Stator Input Voltage Rating In Volts

90.0

Stator Input Current Rating

7.7 milliamperes

Stator Input Electrical Power Rating

80.0 milliwatts

Frequency In Hertz

400.0

Zso Resistance In Ohms

1495.00

Zrs Resistance In Ohms

675.00

Maximum Fundamental Null Voltage In Millivolts Per Volt

30.00 output

Maximum Total Null Voltage Output In Millivolts Per Volt

60.00

Electrical Error Angular Range In Minutes

-6.0/+6.0

Spline Tooth Quantity

22 single shaft

Actuator Friction Torque At Minus 55 Deg Celsius

0.50 inch-ounces

Actuator Friction Torque At Plus 25 Deg Celsius

0.20 inch-ounces

Shaft Radial Play Test Point

0.250 inches

Shaft Maximum Radial Play

0.0010 inches

Shaft End Play

0.0030 inches

Pilot Length

0.0460 inches

Shoulder Length

0.2500 inches

Aft Of First Flange Diameter

Between 1.9985 inches and 1.9995 inches

Mounting Surface To Terminal End Distance

Between 3.4350 inches and 3.4450 inches

Spline Tooth Diametral Pitch

96 single shaft

Shaft Maximum Runout

0.0015 inches

Shaft Thread Series Designator

Unf single shaft

Shaft Thread Direction

Right-hand single shaft

Shaft Thread Class

Terminal Location

Rear

Shaft Thread Length

0.2660 inches single shaft

Plus J Zso Reactance In Ohms

11870.00

Plus J Zrs Reactance In Ohms

741.00

Shaft Type

Spline w/threads single shaft

Transformation Ratio

0.735 rotor to stator

Shaft 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", "", etc.).

Terminal Type And Quantity

7 screw

Specification Data

81349-mil-s-20708/94 government specification

FSC

5990 Synchros And Resolvers

NIIN

006440123

NSN

5990006440123

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

8212775

Cage Code:

81349

Status:

MSDS:

Part Number:

MIL-S-20708/94

Cage Code:

81349

Status:

MSDS:

Part Number:

23CT4A

Cage Code:

81349

Status:

MSDS:

Part Number:

MS51082-4

Cage Code:

96906

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 9014900000
NAICS: 334511
SITC: 87412
Description: Parts & accessories for direction finding compasses and other navigational instruments and appliances
End Use (Code 22220):
Marine engines, parts

Q & A

Frequently asked questions for NSN 5990-00-644-0123

What are the manufacturers of nsn 5990006440123?

Military Specifications (81349)
Military Standards (96906)

Does this nsn 5990006440123 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5990006440123
A synchro consisting of a stator and rotor inductively coupled. the electrical output of the rotor is dependent upon both the position of the rotor and the electrical input to the stator from a transmitter synchro or a differential synchro. does not include variable resistors, goniometers, or variable transformers.

Does nsn 5990006440123 contain any precious metals?
Precious metal content is unknown.

Does nsn 5990006440123 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5990006440123?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

15289

FIIG:

A07800

App. Key:

Cond. Code:

Status:

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