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FSC 5990 | Synchros And Resolvers
M20708/14-001

Model: M20708/14-001

Transmitter Synchro

Properties:

Body Material

Steel, corrosion resisting

Body Style

Standard round c

Shoulder Diameter

Between 1.3070 inches and 1.3120 inches

Pilot Diameter

Between 0.8745 inches and 0.8750 inches

Overall Length

2.3120 inches

Flange Diameter

Between 1.4320 inches and 1.4370 inches

Flange Thickness

0.0930 inches

Undercut Diameter

1.3120 inches

Undercut Width

0.0780 inches

Shaft Diameter

0.1872 inches single shaft

Shaft Length

0.5400 inches single shaft

Fragility Factor

Moderately rugged

Maximum Tempurature Rise

20.0 degrees celsius

Body Size

Rotor Input Voltage Rating In Volts

115.0

Frequency In Hertz

400.0

Rotor Input Current Rating

85.0 milliamperes

Rotor Input Electrical Power Rating

1.0 watts

Zro Impedance Magnitude In Ohms

Between 1402.00 and 1643.00

Zro Impedance Angle In Deg

Between 81.40 and 84.60

Zss Impedance Magnitude In Ohms

Between 123.00 and 138.00

Zss Impedance Angle In Deg

Between 26.50 and 31.50

Phase Shift Angle In Deg

4.000 input to output

Maximum Fundamental Null Voltage In Millivolts Per Volt

32.00 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

21 single shaft

Actuator Friction Torque At Plus 25 Deg Celsius

0.05 inch-ounces

Pilot Length

0.0400 inches

Shoulder Length

0.1320 inches

Mounting Surface To Terminal End Distance

1.7720 inches

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

0.1850 inches single shaft

Shaft Type

Spline w/threads single shaft

Transformation Ratio

0.783 rotor to stator

Shaft 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", "", etc.).

Terminal Type And Quantity

5 screw

Specification Data

81349-mil-s-20708/14 government specification

NSN

5990-00-905-1836

Part Number

M20708/14-001

Description

Synchro,transmitter

CAGE

81349

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.

Part M20708/14-001 NSN 5990-00-905-1836

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

02073

FIIG:

A07800

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

0.6000lbs

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

062120

UFC:

34760

LTL:

RATING VARIABLE

LCL:

WCC:

593

TCC:

SHC:

ACC:

Trailers/Vehicles

End Items End applications NSN 5990-00-905-1836 is a component of

An/slq-32 Countermeasure Set
An/spn-35b
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Mk-45 5-in./54 Cal Gun
An/tpn-18 Radar Set
Mk 26 (gmls) Guided Missile Launching System
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An/bsy-1(v) Sonar
An/bqs-14a/15 Sonar Sets
Radar An Target Acquisition
010709415
Radar Set
000646010
Antenna Position Simulator

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Schedule B and Export

Schedule B: 9014900000
SITC: 87412
End Use: Marine engines, parts
NAICS: 334511
USDA: 1

Freight Class: Parts & accessories for direction finding compasses and other navigational instruments and appliances