Model: M20708/80-001

Differential Transmitter Synchro

Properties:

Body Material
Steel, corrosion resisting
Body Style
Standard round a
Pilot Diameter
Between 0.4995 inches and 0.5000 inches
Overall Length
1.6150 inches
Flange Diameter
Between 0.7450 inches and 0.7500 inches
Flange Thickness
0.0620 inches
Undercut Diameter
0.6870 inches
Undercut Width
0.0620 inches
Shaft Diameter
0.0898 inches single shaft and 0.0900 inches single shaft
Shaft Length
0.3750 inches single shaft
Fragility Factor
Moderately rugged
End Application
Aircraft, starlifter c-141
Maximum Tempurature Rise
20.0 degrees celsius
Body Size
8
Stator Input Voltage Rating In Volts
11.8
Stator Input Current Rating
108.0 milliamperes
Stator Input Electrical Power Rating
240.0 milliwatts
Frequency In Hertz
400.0
Zso Impedance Magnitude In Ohms
Between 95.00 and 120.00
Zso Impedance Angle In Deg
Between 74.00 and 79.00
Zrs Impedance Magnitude In Ohms
Between 35.00 and 48.00
Zrs Impedance Angle In Deg
Between 15.00 and 20.00
Phase Shift Angle In Deg
9.500 input to output
Maximum Fundamental Null Voltage In Millivolts Per Volt
20.00 output
Maximum Total Null Voltage Output In Millivolts Per Volt
30.00
Electrical Error Angular Range In Minutes
-7.0/+7.0
Actuator Friction Torque At Plus 25 Deg Celsius
0.04 inch-ounces
Pilot Length
0.0400 inches
Mounting Surface To Terminal End Distance
1.2400 inches
Terminal Location
Rear
Shaft Slot Depth
0.0250 inches single shaft
Shaft Slot Width
0.0200 inches single shaft
Shaft Type
Round, slotted single shaft
Transformation Ratio
1.154 rotor to stator
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 wire lead
Specification Data
81349-mil-s-20708/80 government specification
NSN
5990-00-977-8096
Part Number
M20708/80-001
Description
Synchro,differential Transmitter
CAGE
81349

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 M20708/80-001 NSN 5990-00-977-8096

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:
0.2000lbs
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:
Instruments/Radio

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

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