Model: MIL-S-20708/9

Differential Transmitter Synchro

Properties:

Body Material
Steel, stainless
Body Style
Standard round c
Shoulder Diameter
Between 0.9995 inches and 1.0000 inches
Pilot Diameter
Between 0.6245 inches and 0.6250 inches
Overall Length
2.4130 inches
Flange Diameter
Between 1.0570 inches and 1.0620 inches
Flange Thickness
0.0930 inches
Undercut Diameter
0.9750 inches
Undercut Width
0.0620 inches
Shaft Diameter
0.1870 inches single shaft and 0.1872 inches single shaft
Shaft Length
0.5620 inches single shaft
Fragility Factor
Moderately rugged
Maximum Tempurature Rise
10.0 degrees celsius
Body Size
11
Stator Input Voltage Rating In Volts
11.8
Stator Input Current Rating
150.0 milliamperes
Stator Input Electrical Power Rating
250.0 milliwatts
Frequency In Hertz
400.0
Zso Impedance Magnitude In Ohms
Between 68.00 and 85.00
Zso Impedance Angle In Deg
Between 77.00 and 82.00
Zrs Impedance Magnitude In Ohms
Between 20.00 and 26.00
Zrs Impedance Angle In Deg
Between 22.00 and 30.00
Phase Shift Angle In Deg
6.000 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
17.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
26.00
Electrical Error Angular Range In Minutes
-7.0/+7.0
Spline Tooth Quantity
21 single shaft
Actuator Friction Torque At Plus 25 Deg Celsius
0.07 inch-ounces
Alignment Hole Quantity
4
Pilot Length
0.0620 inches
Shoulder Length
0.0620 inches
Mounting Surface To Terminal End Distance
1.8510 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
Terminal Location
Rear
Shaft Thread Length
0.1900 inches single shaft
Shaft Type
Spline w/threads single shaft
Alignment Hole Depth
0.1250 inches
Transformation Ratio
1.154 rotor to stator
Alignment Hole Bolt Circle Diameter
0.8120 inches
Shaft Thread Size
0.0190 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
6 screw
Specification Data
81349-mil-s-20708/9 government specification
NSN
5990-00-229-4647
Part Number
MIL-S-20708/9
Description
Synchro,differential Transmitter
CAGE

A synchro, the rotor of which is mechanically positioned for modifying electrical angular information, received from a transmitter synchro and transmitting to receiver synchro or control transformer synchro electrical information corresponding to the sum or difference of the electrical input angle and its rotor position angle. Does not include variable resistors, goniometers, variable transformers, or items with dials.

Part MIL-S-20708/9 NSN 5990-00-229-4647

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02071
FIIG:
A07800
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.5000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062120
UFC:
34760
LTL:
RATING VARIABLE
LCL:
--
WCC:
593
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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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

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